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CHAPTER 17
PROCESS COSTING
17-1 Industries using process costing in their manufacturing area include chemical processing,
oil refining, pharmaceuticals, plastics, brick and tile manufacturing, semiconductor chips,
beverages, and breakfast cereals.
17-2 Process costing systems separate costs into cost categories according to the timing of
when costs are introduced into the process. Often, only two cost classifications, direct materials
and conversion costs, are necessary. Direct materials are frequently added at one point in time,
often the start or the end of the process, and all conversion costs are added at about the same
time, but in a pattern different from direct materials costs.
17-3 Equivalent units is a derived amount of output units that takes the quantity of each input
(factor of production) in units completed or in incomplete units in work in process, and converts
the quantity of input into the amount of completed output units that could be made with that
quantity of input. Each equivalent unit is comprised of the physical quantities of direct materials
or conversion costs inputs necessary to produce output of one fully completed unit. Equivalent
unit measures are necessary since all physical units are not completed to the same extent at the
same time.
17-4 The accuracy of the estimates of completion depends on the care and skill of the
estimator and the nature of the process. Semiconductor chips may differ substantially in the
finishing necessary to obtain a final product. The amount of work necessary to finish a product
may not always be easy to ascertain in advance.
17-5 The five key steps in process costing follow:
Step 1: Summarize the flow of physical units of output.
Step 2: Compute output in terms of equivalent units.
Step 3: Compute cost per equivalent unit.
Step 4: Summarize total costs to account for.
Step 5: Assign total costs to units completed and to units in ending work in process.
17-6

Three inventory methods associated with process costing are:
Weighted average.
First-in, first-out.
Standard costing.

17-7 The weighted-average process-costing method calculates the equivalent-unit cost of all
the work done to date (regardless of the accounting period in which it was done), assigns this
cost to equivalent units completed and transferred out of the process, and to equivalent units in
ending work-in-process inventory.

17-1


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17-8 FIFO computations are distinctive because they assign the cost of the previous
accounting period’s equivalent units in beginning work-in-process inventory to the first units
completed and transferred out of the process and assigns the cost of equivalent units worked on
during the current period first to complete beginning inventory, next to start and complete new
units, and finally to units in ending work-in-process inventory. In contrast, the weighted-average
method costs units completed and transferred out and in ending work in process at the same
average cost.
17-9 FIFO should be called a modified or departmental FIFO method because the goods
transferred in during a given period usually bear a single average unit cost (rather than a distinct
FIFO cost for each unit transferred in) as a matter of convenience.
17-10 A major advantage of FIFO is that managers can judge the performance in the current
period independently from the performance in the preceding period.
17-11 The journal entries in process costing are basically similar to those made in job-costing
systems. The main difference is that, in process costing, there is often more than one work-inprocess account––one for each process.
17-12 Standard-cost procedures are particularly appropriate to process-costing systems where

there are various combinations of materials and operations used to make a wide variety of similar
products as in the textiles, paints, and ceramics industries. Standard-cost procedures also avoid
the intricacies involved in detailed tracking with weighted-average or FIFO methods when there
are frequent price variations over time.
17-13 There are two reasons why the accountant should distinguish between transferred-in
costs and additional direct materials costs for a particular department:
(a) All direct materials may not be added at the beginning of the department process.
(b) The control methods and responsibilities may be different for transferred-in items and
materials added in the department.
17-14 No. Transferred-in costs or previous department costs are costs incurred in a previous
department that have been charged to a subsequent department. These costs may be costs
incurred in that previous department during this accounting period or a preceding accounting
period.
17-15 Materials are only one cost item. Other items (often included in a conversion costs pool)
include labor, energy, and maintenance. If the costs of these items vary over time, this variability
can cause a difference in cost of goods sold and inventory amounts when the weighted-average
or FIFO methods are used.
A second factor is the amount of inventory on hand at the beginning or end of an
accounting period. The smaller the amount of production held in beginning or ending inventory
relative to the total number of units transferred out, the smaller the effect on operating income,
cost of goods sold, or inventory amounts from the use of weighted-average or FIFO methods.

17-2


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17-16 (25 min.) Equivalent units, zero beginning inventory.
1.


Direct materials cost per unit ($720,000 ÷ 10,000)
Conversion cost per unit ($760,000 ÷ 10,000)
Assembly Department cost per unit

$ 72
76
$148

2a. Solution Exhibit 17-16A calculates the equivalent units of direct materials and conversion
costs in the Assembly Department of International Electronics in February 2007.
Solution Exhibit 17-16B computes equivalent unit costs.
2b. Direct materials cost per unit
Conversion cost per unit
Assembly Department cost per unit

$ 72
80
$152

3. The difference in the Assembly Department cost per unit calculated in requirements 1 and
2 arises because the costs incurred in January and February are the same but fewer equivalent
units of work are done in February relative to January. In January, all 10,000 units introduced are
fully completed resulting in 10,000 equivalent units of work done with respect to direct materials
and conversion costs. In February, of the 10,000 units introduced, 10,000 equivalent units of
work is done with respect to direct materials but only 9,500 equivalent units of work is done with
respect to conversion costs. The Assembly Department cost per unit is, therefore, higher.
SOLUTION EXHIBIT 17-16A
Steps 1 and 2: Summarize Output in Physical Units and Compute Output in Equivalent Units;
Assembly Department of International Electronics for February 2007.


Flow of Production
Work in process, beginning (given)
Started during current period (given)
To account for
Completed and transferred out
during current period
Work in process, ending* (given)
1,000 100%; 1,000 50%
Accounted for
Work done in current period only

(Step 1)
Physical
Units
0
10,000
10,000
9,000
1,000

(Step 2)
Equivalent Units
Direct
Conversion
Materials
Costs

9,000
1,000


9,000
500

10,000
10,000

*Degree of completion in this department: direct materials, 100%; conversion costs, 50%.

17-3

9,500


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SOLUTION EXHIBIT 17-16B
Compute Equivalent Unit Costs,
Assembly Department of International Electronics for February 2007.

(Step 3) Costs added during February
Divide by equivalent units of work done
in current period (Solution Exhibit 17-l6A)
Cost per equivalent unit

Total
Production
Direct
Conversion
Costs
Materials

Costs
$1,480,000
$720,000
$760,000

$

10,000
72
$

9,500
80

17-17 (20 min.) Journal entries (continuation of 17-16).
1.

2.

3.

Work in Process––Assembly
Accounts Payable
To record $720,000 of direct materials
purchased and used in production during
February 2007
Work in Process––Assembly
Various accounts
To record $760,000 of conversion costs
for February 2007; examples include energy,

manufacturing supplies, all manufacturing
labor, and plant depreciation
Work in Process––Testing
Work in Process––Assembly
To record 9,000 units completed and
transferred from Assembly to Testing
during February 2007 at
$152 9,000 units = $1,368,000

720,000
720,000

760,000
760,000

1,368,000
1,368,000

Postings to the Work in Process––Assembly account follow.
Work in Process –– Assembly Department
Beginning inventory, Feb. 1
0
3. Transferred out to
1. Direct materials
720,000
Work in Process––Testing
2. Conversion costs
760,000
Ending inventory, Feb. 29
112,000


17-4

1,368,000


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17-18 (25 min.) Zero beginning inventory, materials introduced in middle of process.
1.
Solution Exhibit 17-18A shows equivalent units of work done in the current period of
Chemical P, 50,000; Chemical Q, 35,000; Conversion costs, 45,000.
2.
Solution Exhibit 17-18B calculates cost per equivalent unit of work done in the current
period for Chemical P, Chemical Q, and Conversion costs, summarizes the total Mixing
Department costs for July 2007, and assigns these costs to units completed (and transferred out)
and to units in ending work in process.
SOLUTION EXHIBIT 17-18A
Steps 1 and 2: Summarize Output in Physical Units and Compute Output in Equivalent Units;
Mixing Department of Vaasa Chemicals for July 2007.
(Step 1)

Flow of Production
Work in process, beginning (given)
Started during current period (given)
To account for
Completed and transferred out
during current period
Work in process, ending* (given)
15,000 100%; 15,000 0%;

15,000 66 2/3%
Accounted for
Work done in current period only

(Step 2)
Equivalent Units

Physical
Units
Chemical P
0
50,000
50,000
35,000
15,000

35,000

15,000

Chemical Q

Conversion
Costs

35,000

0

35,000


10,000

50,000
50,000

35,000

*Degree of completion in this department: Chemical P, 100%; Chemical Q, 0%; conversion costs, 66 2/3%.

17-5

45,000


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SOLUTION EXHIBIT 17-18B
Steps 3, 4, and 5: Compute Cost per Equivalent Unit, Summarize Total Costs to Account For,
and Assign Total Costs to Units Completed and to Units in Ending Work in Process;
Mixing Department of Vaasa Chemicals for July 2007.

(Step 3) Costs added during July
Divide by equivalent units of work
done in current period (Solution
Exhibit 17-l8A)
Cost per equivalent unit
(Step 4) Total costs to account for
(Step 5) Assignment of costs:
Completed and transferred out

(35,000 units)
Work in process, ending
(15,000 units)
Total costs accounted for

Total
Production
Costs
Chemical P Chemical Q
$455,000
$250,000
$70,000

$

50,000
5

$

35,000
2

Conversion
Costs
$135,000

$

45,000

3

$455,000

$350,000 (35,000*

$5) + (35,000*

105,000 (15,000†
$455,000

$5) +

(0†

$2)

$2) + (35,000*

+ (10,000† $3)

*Equivalent units completed and transferred out from Solution Exhibit 17-18A, Step 2.
†
Equivalent units in work in process, ending from Solution Exhibit 17-18A, Step 2.

17-19 (15 min.) Weighted-average method, equivalent units.
Under the weighted-average method, equivalent units are calculated as the equivalent units of
work done to date. Solution Exhibit 17-19 shows equivalent units of work done to date for the
Satellite Assembly Division of Aerospatiale for direct materials and conversion costs.
SOLUTION EXHIBIT 17-19

Steps 1 and 2: Summarize Output in Physical Units and Compute Output in Equivalent Units;
Weighted-Average Method of Process Costing, Satellite Assembly Division of Aerospatiale for
May 2007.
(Step 2)
(Step 1)
Equivalent Units
Physical
Direct Conversion
Flow of Production
Units
Materials
Costs
Work in process beginning (given)
8
Started during current period (given)
50
To account for
58
Completed and transferred out during current period
46
46.0
46.0
Work in process, ending* (12 60%; 12 30%) (given) 12
7.2
3.6
Accounted for
58
____
____
Work done to date

53.2
49.6
*Degree of completion in this department: direct materials, 60%; conversion costs, 30%.

17-6

$3)


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17-20 (20 min.) Weighted-average method, assigning costs (continuation of 17-19).
Solution Exhibit 17-20 calculates cost per equivalent unit of work done to date in the Satellite
Assembly Division of Aerospatiale, summarizes total costs to account for, and assigns costs to
units completed and to units in ending work-in-process inventory.
SOLUTION EXHIBIT 17-20
Steps 3, 4, and 5: Compute Cost per Equivalent Unit, Summarize Total Costs to Account For,
and Assign Total Costs to Units Completed and to Units in Ending Work in Process;
Weighted-Average Method of Process Costing, Satellite Assembly Division of Aerospatiale for
May 2007.

(Step 3)

(Step 4)
(Step 5)

Work in process, beginning (given)
Costs added in current period (given)
Costs incurred to date
Divide by equivalent units of work done to date

(Solution Exhibit 17-19)
Cost per equivalent unit of work done to date
Total costs to account for
Assignment of costs:
Completed and transferred out (46 units)
Work in process, ending (12 units)
Total costs accounted for

*
†

Total
Production
Costs
$ 5,844,000
46,120,000

Direct
Materials
$ 4,933,600
32,200,000
$37,133,600

$

53.2
698,000

$


49.6
299,000

$51,964,000
45,862,000 (46* $698,000) + (46* $299,000)
6,102,000 (7.2† $698,000) + (3.6† $299,000)
$51,964,000

Equivalent units completed and transferred out from Solution Exhibit 17-19, Step 2.
Equivalent units in work in process, ending from Solution Exhibit 17-19, Step 2.

17-7

Conversion
Costs
$ 910,400
13,920,000
$14,830,400


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17-21 (15 min.) FIFO method, equivalent units.
Under the FIFO method, equivalent units are calculated as the equivalent units of work done in
the current period only. Solution Exhibit 17-21 shows equivalent units of work done in May
2007 in the Satellite Assembly Division of Aerospatiale for direct materials and conversion
costs.
SOLUTION EXHIBIT 17-21
Steps 1 and 2: Summarize Output in Physical Units and Compute Output in Equivalent Units;
FIFO Method of Process Costing, Satellite Assembly Division of Aerospatiale for May 2007.


Flow of Production
Work in process, beginning (given)
Started during current period (given)
To account for
Completed and transferred out during current
period:
From beginning work in process§
8 (100% 90%); 8 (100% 40%)
Started and completed
38 100%, 38 100%
Work in process, ending* (given)
12 60%; 12 30%
Accounted for
Work done in current period only
§

(Step 1)
Physical
Units
8
50
58

(Step 2)
Equivalent Units
Direct
Conversion
Materials
Costs

(work done before current period)

8
38

†

0.8

4.8

38.0

38.0

7.2

3.6

46.0

46.4

12
58

Degree of completion in this department: direct materials, 90%; conversion costs, 40%.
46 physical units completed and transferred out minus 8 physical units completed and transferred out from
beginning work-in-process inventory.
*Degree of completion in this department: direct materials, 60%; conversion costs, 30%.

†

17-8


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17-22 (20 min.) FIFO method, assigning costs (continuation of 17-21).
Solution Exhibit 17-22 calculates cost per equivalent unit of work done in May 2007 in the
Satellite Assembly Division of Aerospatiale, summarizes total costs to account for, and assigns
costs to units completed and to units in ending work-in-process inventory.
SOLUTION EXHIBIT 17-22
Steps 3, 4, and 5: Compute Cost per Equivalent Unit, Summarize Total Costs to Account For,
and Assign Total Costs to Units Completed and to Units in Ending Work in Process;
FIFO Method of Process Costing, Satellite Assembly Division of Aerospatiale for May 2007.
Total
Production
Costs
$ 5,844,000

Direct
Conversion
Materials
Costs
(costs of work done before
current period)
$32,200,000
$ 13,920,000

Work in process, beginning

($4,933,600 + $910,400)
(Step 3) Costs added in current period (given)
46,120,000
Divide by equivalent units of work done in
current period (Solution Exhibit 17-21)
46
46.4
Cost per equiv. unit of work done in current period
$ 700,000
$
300,000
(Step 4) Total costs to account for
$51,964,000
(Step 5) Assignment of costs:
Completed and transferred out (46 units):
Work in process, beginning (8 units)
$ 5,844,000
Costs added to beginning work in process
in current period
2,000,000 (0.8* $700,000) + (4.8* $300,000)
Total from beginning inventory
7,844,000
Started and completed (38 units)
38,000,000 (38† $700,000) + (38† $300,000)
Total costs of units completed and
transferred out
45,844,000
Work in process, ending (12 units)
6,120,000 (7.2# $700,000) + (3.6# $300,000)
Total costs accounted for

$51,964,000
*

Equivalent units used to complete beginning work in process from Solution Exhibit 17-21, Step 2.
Equivalent units started and completed from Solution Exhibit 17-21, Step 2.
#
Equivalent units in work in process, ending from Solution Exhibit 17-21, Step 2.
†

17-9


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17-23 (25-30 min.) Standard-costing method, assigning costs.
1.
The calculations of equivalent units for direct materials and conversion costs are identical
to the calculations of equivalent units under the FIFO method. Solution Exhibit 17-21 shows the
equivalent unit calculations under standard costing given by the equivalent units of work done in
May 2007 in the Assembly Department.
2.
Solution Exhibit 17-23 summarizes the total costs to account for, and assigns these costs
to units completed and transferred out and to units in ending work in process.
3.

Solution Exhibit 17-23 shows the direct materials and conversion cost variances for
Direct materials
Conversion costs

$230,000 U

$232,000 U

SOLUTION EXHIBIT 17-23
Steps 3, 4, and 5: Compute Cost per Equivalent Unit, Summarize Total Costs to Account For,
and Assign Total Costs to Units Completed and to Units in Ending Work in Process;
Use of Standard Costs in Process Costing, Satellite Assembly Division of Aerospatiale for May
2007.
Total
Production
Costs
(Step 3) Standard cost per equivalent unit (given)
Work in process, beginning (given)
Costs added in current period at standard costs
(Step 4) Total costs to account for
(Step 5) Assignment of costs at standard costs:
Completed and transferred out (46 units):
Work in process, beginning (8 units)
Costs added to beginning work in process in
current period
Total from beginning inventory
Started and completed (38 units)
Total costs of units transferred out
Work in process, ending (12 units)
Total costs accounted for
Summary of variances for current performance:
Costs added in current period at standard costs (see Step 3
above; 6.0 $695,000; 46.4 $295,000)
Actual costs incurred (given)
Variance


Direct
Conversion
Materials
Costs
$ 695,000
$ 295,000
$ 5,948,000 (7.2 $695,000) + (3.2 $295,000)
45,658,000 (46.0 $695,000) + (46.4 $295,000)
$51,606,000

$ 5,948,000
1,972,000 (0.8* $695,000) + (4.8* $295,000)
7,920,000
37,620,000
(38† $695,000) + (38† $295,000)
45,540,000
6,066,000
(7.2# $695,000) + (3.6# $295,000)
$51,606,000

$31,970,000
32,200,000
$ 230,000 U

*Equivalent units to complete beginning work in process from Solution Exhibit 17-21, Step 2.
†
Equivalent units started and completed from Solution Exhibit 17-21, Step 2.
#
Equivalent units in work in process, ending from Solution Exhibit 17-21, Step 2.


17-10

$

$13,688,000
13,920,000
232,000 U


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17-24 (25 min.) Weighted-average method, assigning costs.
1. & 2. Solution Exhibit 17-24 calculates the cost per equivalent unit of work done to date for
direct materials and conversion costs, summarizes total costs to account for, and assigns these
costs to units completed and transferred out and to units in ending work-in-process inventory.
SOLUTION EXHIBIT 17-24
Steps 3, 4, and 5: Compute Cost per Equivalent Unit, Summarize Total Costs to Account For,
and Assign Total Costs to Units Completed and to Units in Ending Work in Process;
Weighted-Average Method of Process Costing, Chatham Company for July 2007.

(Step 3)

(Step 4)
(Step 5)

Work in process, beginning (given)
Costs added in current period (given)
Costs incurred to date
Divide by equivalent units of work done to
date (given)

Cost per equivalent unit of work done to date
Total costs to account for
Assignment of costs:
Completed and transferred out (34,000 units)
Work in process, ending (16,000 units)
Total costs accounted for

*Equivalent units completed and transferred out (given).
†
Equivalent units in work in process, ending (given).

17-11

Total
Production
Costs
$130,000
651,000

Direct
Materials
$ 60,000
280,000
$340,000

Conversion
Costs
$ 70,000
371,000
$441,000


50,000
$

6.80

42,000
$ 10.50

$781,000
$588,200 (34,000* $6.80) + (34,000* $10.50)
192,800 (16,000† $6.80) + (8,000† $10.50)
$781,000


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17-25 (30 min.) FIFO method, assigning costs.
1. & 2. Solution Exhibit 17-25A calculates the equivalent units of work done in the current
period. Solution Exhibit 17-25B calculates the cost per equivalent unit of work done in the
current period for direct materials and conversion costs, summarizes total costs to account for,
and assigns these costs to units completed and transferred out and to units in ending work-inprocess inventory.
SOLUTION EXHIBIT 17-25A
Steps 1 and 2: Summarize Output in Physical Units and Compute Output in Equivalent Units;
FIFO Method of Process Costing, Chatham Company for July 2007.
(Step 2)
Equivalent Units
Direct
Conversion
Materials

Costs
(work
done
before
current
period)
10,000

(Step 1)
Physical
Units

Flow of Production

Work in process, beginning (given)
Started during current period (given)
To account for
Completed and transferred out during current period:
From beginning work in process§
10,000 (100% 100%); 10,000 (100% – 70%)
Started and completed
24,000 100%, 24,000 100%
Work in process, ending* (given)
16,000 100%; 16,000 50%
Accounted for
Work done in current period only
§

40,000
50,000

10,000
†

0

3,000

24,000

24,000

16,000

8,000

40,000

35,000

24,000
16,000
50,000

Degree of completion in this department: direct materials, 100%; conversion costs, 70%.
34,000 physical units completed and transferred out minus 10,000 physical units completed and transferred out
from beginning work-in-process inventory.
*Degree of completion in this department: direct materials, 100%; conversion costs, 50%.
†

17-12



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SOLUTION EXHIBIT 17-25B
Steps 3, 4, and 5: Compute Cost per Equivalent Unit, Summarize Total Costs to Account For, and Assign Total Costs to Units
Completed and to Units in Ending Work in Process;
FIFO Method of Process Costing, Chatham Company for July 2007.

Work in process, beginning ($60,000 + $70,000)
(Step 3) Costs added in current period (given)

Total
Production
Direct
Conversion
Costs
Materials
Costs
(costs
of
work
done
before
current period)
$130,000
651,000
$280,000
$371,000


Divide by equivalent units of work done in
current period (Solution Exhibit 17-25A)

40,000

Cost per equivalent unit of work done in current period

$

7

35,000
$

10.60

(Step 4) Total costs to account for

$781,000

(Step 5) Assignment of costs:
Completed and transferred out (34,000 units):
Work in process, beginning (10,000 units)
Cost added to beginning work in process in current period
Total from beginning inventory
Started and completed (24,000 units)
Total costs of units completed and transferred out
Work in process, ending (16,000 units)
Total costs accounted for


$130,000
31,800
(0* $7) + (3,000* $10.60)
161,800
422,400 (24,000† $7) + (24,000† $10.60)
584,200
196,800 (16,000# $7) + (8,000# $10.60)
$781,000

*Equivalent units used to complete beginning work in process from Solution Exhibit 17-25A, Step 2.
†
Equivelant units started and completed from Solution Exhibit 17-25A, Step 2.
#
Equivalent units in work in process, ending from Solution Exhibit 17-25A, Step 2.

17-13


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17-26 (30 min.) Standard-costing method, assigning costs.
1.
The calculations of equivalent units for direct materials and conversion costs are identical
to the calculations of equivalent units under the FIFO method. Solution Exhibit 17-25A shows
the equivalent unit calculations for standard costing given by the equivalent units of work done
in July 2007. Solution Exhibit 17-26 uses the standard costs (direct materials, $6.60; conversion
costs, $10.40) to summarize total costs to account for, and to assign these costs to units
completed and transferred out and to units in ending work-in-process inventory.
2.


Solution Exhibit 17-26 shows the direct materials and conversion costs variances for
Direct materials
Conversion costs

$16,000 U
$7,000 U

SOLUTION EXHIBIT 17-26
Steps 3, 4, and 5: Compute Cost per Equivalent Unit, Summarize Total Costs to Account For,
and Assign Total Costs to Units Completed and to Units in Ending Work in Process;
Use of Standard Costs in Process Costing, Chatham Company for July 2007.
Total
Production
Costs

Direct
Conversion
Materials
Costs
$
6.60
$ 10.40
$138,800 (10,000 $6.60) + (7,000 $10.40)
628,000 (40,000 $6.60) + (35,000 $10.40)
$766,800

(Step 3) Standard cost per equivalent unit (given)
Work in process, beginning (given)
Costs added in current period at standard costs
(Step 4) Total costs to account for

(Step 5) Assignment of costs at standard costs:
Completed and transferred out (34,000 units):
Work in process, beginning (10,000 units)
$138,800
Costs added to beg. work in process in current period
31,200 (0* $6.60) + (3,000* $10.40)
Total from beginning inventory
170,000
Started and completed (24,000 units)
408,000 (24,000† $6.60) + (24,000† $10.40)
Total costs of units transferred out
578,000
Work in process, ending (16,000 units)
188,800 (16,000# $6.60) + (8,000# $10.40)
Total costs accounted for
$766,800
Summary of variances for current performance:
Costs added in current period at standard costs (see Step 3 above)
$264,000
$364,000
Actual costs incurred (given)
280,000
371,000
Variance
$ 16,000 U
$ 7,000 U
*Equivalent units to complete beginning work in process from Solution Exhibit 17-25A, Step 2.
†
Equivalent units started and completed from Solution Exhibit 17-25A, Step 2.
#

Equivalent units in work in process, ending from Solution Exhibit 17-25A, Step 2.

17-14


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17-27 (35–40 min.) Transferred-in costs, weighted-average method.
1, 2. & 3. Solution Exhibit 17-27A calculates the equivalent units of work done to date.
Solution Exhibit 17-27B calculates the cost per equivalent unit of work done to date for
transferred-in costs, direct materials, and conversion costs, summarizes total costs to account for,
and assigns these costs to units completed and transferred out and to units in ending work-inprocess inventory.
SOLUTION EXHIBIT 17-27A
Steps 1 and 2: Summarize Output in Physical Units and Compute Output in Equivalent Units
Weighted-Average Method of Process Costing;
Finishing Department of Aragon Industrials for June 2007.
(Step 1)

Flow of Production

Physical
Units

Work in process, beginning (given)
50
Transferred in during current period (given) 90
To account for
140
Completed and transferred out
during current period

100
Work in process, ending* (given)
40
40 100%; 40 0%; 40 75%
Accounted for
140
Work done to date

(Step 2)
Equivalent Units
TransferredDirect
Conversion
in Costs
Materials
Costs

100

100

100

40

0

30

140


100

130

*Degree of completion in this department: transferred-in costs, 100%; direct materials, 0%; conversion costs, 75%.

17-15


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SOLUTION EXHIBIT 17-27B
Steps 3, 4, and 5: Compute Cost per Equivalent Unit, Summarize Total Costs to Account For, and Assign Total Costs to Units
Completed and to Units in Ending Work in Process;
Weighted-Average Method of Process Costing,
Finishing Department of Aragon Industrials for June 2007.

(Step 3)

(Step 4)
(Step 5)

a
b

Work in process, beginning (given)
Costs added in current period (given)
Costs incurred to date
Divide by equivalent units of work done to date
(Sol. Exh. 17-27A)

Cost per equivalent unit of work done to date
Total costs to account for
Assignment of costs:
Completed and transferred out (100 units)
Work in process, ending (40 units):
Total costs accounted for

Total
Production Transferred-in
Costs
Costs
$ 70,000
$ 50,000
172,000
95,000
$ 145,000
140
$1,035.71

$

100
250

Conversion
Costs
$20,000
52,000
$72,000
130

$553.85

$242,000
$183,956 (100 a $1,035.71) + (100 a $250) + (100 a $553.85)
58,044 (40b $1,035.71) + (0b $250) + (30b $553.85)
$242,000

Equivalent units completed and transferred out from Sol. Exhibit 17-27, step 2.
Equivalent units in ending work in process from Sol. Exhibit 17-27A, step 2.

17-16

Direct
Materials
$
0
25,000
$25,000


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17-28 (35–40 min.) Transferred-in costs, FIFO method.
Solution Exhibit 17-28A calculates the equivalent units of work done in the current period (for
transferred-in costs, direct-materials, and conversion costs) to complete beginning work-inprocess inventory, to start and complete new units, and to produce ending work in process.
Solution Exhibit 17-28B calculates the cost per equivalent unit of work done in the current
period for transferred-in costs, direct materials, and conversion costs, summarizes total costs to
account for, and assigns these costs to units completed and transferred out and to units in ending
work-in-process inventory.
SOLUTION EXHIBIT 17-28A

Steps 1 and 2: Summarize Output in Physical Units and Compute Output in Equivalent Units
FIFO Method of Process Costing;
Finishing Department of Aragon Industrials for June 2007.
(Step 1)

Flow of Production
Work in process, beginning (given)
Transferred-in during current period (given)
To account for
Completed and transferred out during current period:
From beginning work in processa
[50 (100% – 100%); 50 (100% – 0%); 50 (100% – 60%)]
Started and completed
(50 100%; 50 100%; 50 100%)
Work in process, endingc (given)
(40
100%; 40
0%; 40
75%)

(Step 2)
Equivalent Units

Physical Transferred-in
Direct
Conversion
Units
Costs
Materials
Costs

50
(work done before current period)
90
140
50
0

50

20

50

50

50

40

0

30

90

100

100

50b

40
140

Accounted for
Work done in current period only
a

Degree of completion in this department: Transferred-in costs, 100%; direct materials, 0%; conversion costs, 60%.
100 physical units completed and transferred out minus 50 physical units completed and transferred out from beginning

b

work-in-process inventory.
Degree of completion in this department: transferred-in costs, 100%; direct materials, 0%; conversion costs, 75%.

c

17-17


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SOLUTION EXHIBIT 17-28B
Steps 3, 4, and 5: Compute Cost per Equivalent Unit, Summarize Total Costs to Account For, and Assign Total Costs to Units
Completed and to Units in Ending Work in Process;
FIFO Method of Process Costing,
Finishing Department of Aragon Industrials for June 2007.

Work in process, beginning (given) ($40,000 + $0 + $20,000)
(Step 3) Costs added in current period (given)

Divide by equivalent units of work done in current period
(Sol. Exhibit 17-28A)
Cost per equivalent unit of work done in current period
(Step 4) Total costs to account for
(Step 5) Assignment of costs:
Completed and transferred out (100 units)
Work in process, beginning (50 units)
Costs added to beginning work in process in current period
Total from beginning inventory
Started and completed (50 units)
Total costs of units completed and transferred out
Work in process, ending (40 units):
Total costs accounted for
a

Total
Production Transferred-in
Direct
Conversion
Costs
Costs
Materials
Costs
$ 60,000
(costs of work done before current period)
164,200
$87,200
$25,000
$52,000
90

$968.89

17-18

100
250

$

100
520

$224,200

$ 60,000
22,900
82,900
86,944
169,844
54,356
$224,200

(0a

$968.89) + (50 a

$250)

+ (20 a


$520)

(50b

$968.89) + (50b

$250)

+ (50b

$520)

(40c

$968.89) + (0c

$250)

+ (30c

$520)

Equivalent units used to complete beginning work in process from Solution Exhibit 17-28A, step 2.
Equivalent units started and completed from Solution Exhibit 17-28A, step 2.
c
Equivalent units in ending work in process from Solution Exhibit 17-28A, step 2.
b

$



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17-29 (15 min.) Operation costing (chapter appendix).
Costs of Work Order 815 and Work Order 831 are as follows:

Number of units (pairs)
Direct materials costs
Conversion costs:
Cutting (1,000; 5,000 × $10)
Sewing (1,000; 5,000 × $15)
Lining (1,000; 0 × $8)
Packing (1,000; 5,000 × $2)
Total costs
Total cost per unit

Work Order 815
1,000
$30,000

Work Order 831
5,000
$ 50,000

10,000
15,000
8,000
2,000
$65,000


50,000
75,000
–
10,000
$185,000

$65,000
= $65
1,000

17-19

$185,000
= $37
5,000


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17-30 (25 min.) Weighted-average method.
1.
Since direct materials are added at the beginning of the assembly process, the units in this
department must be 100% complete with respect to direct materials. Solution Exhibit 17-30A
shows equivalent units of work done to date:
Direct materials
Conversion costs

100 equivalent units
97 equivalent units


2. & 3. Solution Exhibit 17-30B calculates cost per equivalent unit of work done to date,
summarizes the total Assembly Department costs for October 2007, and assigns these costs to
units completed (and transferred out) and to units in ending work in process using the weightedaverage method.
SOLUTION EXHIBIT 17-30A
Steps 1 and 2: Summarize Output in Physical Units and Compute Output in Equivalent Units;
Weighted-Average Method of Process Costing, Assembly Department of Global Defense, Inc.,
for October 2007.
(Step 1)

Flow of Production
Work in process, beginning (given)
Started during current period (given)
To account for
Completed and transferred out
during current period
Work in process, ending* (given)
10 100%; 10 70%
Accounted for
Work done to date

Physical
Units
20
80
100
90
10

(Step 2)
Equivalent Units

Direct
Conversion
Materials
Costs

90

90

10

7

100

97

100

*Degree of completion in this department: direct materials, 100%; conversion costs, 70%.

17-20


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SOLUTION EXHIBIT 17-30B
Steps 3, 4, and 5: Compute Cost per Equivalent Unit, Summarize Total Costs to Account For,
and Assign Total Costs to Units Completed and to Units in Ending Work in Process;
Weighted-Average Method of Process Costing, Assembly Department of Global Defense,

Inc., for October 2007.

(Step 3)

(Step 4)
(Step 5)

*
†

Work in process, beginning (given)
Costs added in current period (given)
Costs incurred to date
Divide by equivalent units of work done to date
(Solution Exhibit 17-30A)
Cost per equivalent unit of work done to date
Total costs to account for
Assignment of costs:
Completed and transferred out (90 units)
Work in process, ending (10 units)
Total costs accounted for

Total
Production
Costs
$ 580,000
2,935,000

Direct
Materials

$ 460,000
2,000,000
$2,460,000

Conversion
Costs
$ 120,000
935,000
$1,055,000

100
24,600

97
$10,876.29

$
$3,515,000

$3,192,866 (90* $24,600) + (90* $10,876.29)
322,134 (10† $24,600) + (7† $10,876.29)
$3,515,000

Equivalent units completed and transferred out from Solution Exhibit 17-30A, Step 2.
Equivalent units in work in process, ending from Solution Exhibit 17-30A, Step 2.

17-31 (10 min.) Journal entries (continuation of 17-30).
1.

2.


Work in Process––Assembly Department
Accounts Payable
Direct materials purchased and used in
production in October.

3.

Work in Process––Assembly Department
Various accounts
Conversion costs incurred in October.
Work in Process––Testing Department
Work in Process––Assembly Department
Cost of goods completed and transferred out
in October from the Assembly Department
to the Testing Department.

2,000,000
2,000,000

935,000
935,000

3,192,866

Work in Process––Assembly Department
Beginning inventory, October 1
580,000 3. Transferred out to
1. Direct materials
2,000,000

Work in Process–Testing
2. Conversion costs
935,000
Ending Inventory, October 31
322,134

17-21

3,192,866

3,192,866


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17-32 (20 min.) FIFO method (continuation of 17-30).
1.
The equivalent units of work done in the current period in the Assembly Department in
October 2007 for direct materials and conversion costs are shown in Solution Exhibit 17-32A.
2.
The cost per equivalent unit of work done in the current period in the Assembly
Department in October 2007 for direct materials and conversion costs is calculated in Solution
Exhibit 17-32B.
3.
Solution Exhibit 17-32B summarizes the total Assembly Department costs for October
2007, and assigns these costs to units completed (and transferred out) and units in ending work in
process under the FIFO method.
The cost per equivalent unit of beginning inventory and of work done in the current
period differ:


Direct materials
Conversion costs

Beginning
Inventory
$23,000 ($460,000 20 equiv. units)
$10,000 ($120,000 12 equiv. units)

Cost per equivalent unit (weighted-average)
Cost per equivalent unit (FIFO)

Direct
Materials
$24,600*
$25,000**

Work Done in
Current Period
$25,000
$11,000
Conversion
Costs
$10,876.29*
$11,000**

*

from Solution Exhibit 17-30B
from Solution Exhibit 17-32B


**

The cost per equivalent unit differs between the two methods because each method uses different
costs to calculate the numerator of the calculation. FIFO uses only the costs added during the
period whereas weighted-average uses the costs from the beginning work-in-process as well as
costs added during the period. Both methods also use different equivalent units in the
denominator.
The following table summarizes the costs assigned to units completed and those still in
process under the weighted-average and FIFO process-costing methods for our example.
Weighted
Average
FIFO
(Solution
(Solution
Exhibit 17-30B) Exhibit 17-32B) Difference
Cost of units completed and transferred out
$3,192,866
$3,188,000
–$4,866
Work in process, ending
322,134
327,000
+$4,866
Total costs accounted for
$3,515,000
$3,515,000

17-22



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The FIFO ending inventory is higher than the weighted-average ending inventory by
$4,866. This is because FIFO assumes that all the lower-cost prior-period units in work in
process are the first to be completed and transferred out while ending work in process consists of
only the higher-cost current-period units. The weighted-average method, however, smoothes out
cost per equivalent unit by assuming that more of the higher-cost units are completed and
transferred out, while some of the lower-cost units in beginning work in process are placed in
ending work in process. So, in this case, the weighted-average method results in a higher cost of
units completed and transferred out and a lower ending work-in-process inventory relative to
FIFO.
SOLUTION EXHIBIT 17-32A
Steps 1 and 2: Summarize Output in Physical Units and Compute Output in Equivalent Units;
FIFO Method of Process Costing,
Assembly Department of Global Defense Inc. for October 2007.
(Step 1)

Flow of Production
Work in process, beginning (given)
Started during current period (given)
To account for
Completed and transferred out during current
period:
From beginning work in process§
20 (100% 100%); 20 (100% 60%)
Started and completed
70 100%, 70 100%
Work in process, ending* (given)
10 100%; 10 70%
Accounted for

Work done in current period only
§

Physical
Units
20
80
100

(Step 2)
Equivalent Units
Direct
Conversion
Materials
Costs
(work done before current period)

20
70†

0

8

70

70

10


7

80

85

10
100

Degree of completion in this department: direct materials, 100%; conversion costs, 60%.
90 physical units completed and transferred out minus 20 physical units completed and transferred out from
beginning work-in-process inventory.
*Degree of completion in this department: direct materials, 100%; conversion costs, 70%.
†

17-23


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SOLUTION EXHIBIT 17-32B
Steps 3, 4, and 5: Compute Cost per Equivalent Unit, Summarize Total Costs to Account For, and Assign Total Costs to Units
Completed and to Units in Ending Work in Process;
FIFO Method of Process Costing, Assembly Department of Global Defense, Inc., for October 2007.

Work in process, beginning ($460,000 + $120,000)
(Step 3) Costs added in current period (given)

Divide by equivalent units of work done in
current period (Solution Exhibit 17-32A)
Cost per equivalent unit of work done in current period
(Step 4) Total costs to account for
(Step 5) Assignment of costs:
Completed and transferred out (90 units):
Work in process, beginning (20 units)
Costs added to beg. work in process in current period
Total from beginning inventory
Started and completed (70 units)
Total costs of units completed & transferred out
Work in process, ending (10 units)
Total costs accounted for

Total
Production
Direct
Conversion
Costs
Materials
Costs
$ 580,000 (costs of work done before current period)
2,935,000
$2,000,000
$935,000

$

85
$ 11,000


$3,515,000

$ 580,000
88,000 (0* $25,000) + (8* $11,000)
668,000
2,520,000 (70† $25,000) + (70† $11,000)
3,188,000
327,000 (10# $25,000) + (7# $11,000)
$3,515,000

*Equivalent units used to complete beginning work in process from Solution Exhibit 17-32A, Step 2.
†
Equivelant units started and completed from Solution Exhibit 17-32A, Step 2.
#
Equivalent units in work in process, ending from Solution Exhibit 17-32A, Step 2.

17-25

80
25,000