To examine the FIFO process-costing method with transferred-in costs, we again use the five-step procedure. Exhibit 18-10 shows Steps 1 and 2. Other than accounting for transferred-in costs, computing the equivalent units is the same as under the FIFO method for the assembly department (see Exhibit 18-6).

Details of the flow of production are as follows:
Work in process, beginning inventory (given on page 727)
Physical units: 240
Transferred-in during current period (given on page 727)
Physical units: 400
To account for
Physical units: 640
Completed and transferred out during current period
From beginning work in process (refer to note a)
Physical units: 240
Transferred-in costs (product of 240 and the difference of 100% and 100%): 0
Direct costs (product of 240 and the difference of 100% and 0%): 240
Conversion costs (product of 240 and the difference of 100% and 62.5%): 440
Started and completed
Physical units: 200 (refer to note b)
Transferred-in costs (product of 200 and 100%): 200
Direct costs (product of 200 and 100%): 200
Conversion costs (product of 200 and 100%): 200
Work in process, ending inventory (given on page 727) (refer to note c)
Physical units: 200
Transferred-in costs (product of 200 and 100%): 200
Direct costs (product of 200 and 0%): 0
Conversion costs (product of 200 and 80%): 160
Accounted for
Physical units: 640
Equivalent units of work done to date
Transferred-in costs: 400
Direct materials: 440
Conversion costs: 450
Note a: Degree of completion in this department: Transferred-in costs, 100%; direct materials, 0%; conversion costs, 62.5%.
Note b: 440 physical units completed and transferred out minus 240 physical units completed and transferred out from beginning work-in-process inventory.
Note c: Degree of completion in this department: Transferred-in costs, 100%; direct materials, 0%; conversion costs, 80%.
Exhibit 18-11 describes Steps 3, 4, and 5. In Step 3, the $165,880 in total costs to account for under the FIFO method differ from the total costs under the weighted-average method, which are $165,400. This is because of the difference in the costs of completed units transferred in from the assembly department under the two methods—$52,480 under FIFO and $52,000 under the weighted-average method. The cost per equivalent unit for the current period in Step 4 is calculated on the basis of costs transferred in and work done in the current period only. Step 5 then accounts for the total costs of $165,880 by assigning them to the units transferred out and those in ending work-in-process inventory. Again, other than considering transferred-in costs, the calculations mirror those under the FIFO method for the assembly department (in Exhibit 18-7).

Details of the spreadsheet are as follows:
Step 3
Work in process, beginning (given on page 727)
Total production costs (sum of transferred-in costs, direct materials, and conversion costs): $51,600
Transferred-in costs: $33,600
Direct materials: $0
Conversion cost: $18,000
Costs added in current period (given on page 727)
Total production costs (sum of transferred-in costs, direct materials, and conversion costs): $114,280
Transferred-in costs: $52,480
Direct materials: $13,200
Conversion cost: $48,600
Total costs to account for
Total production costs (sum of transferred-in costs, direct materials, and conversion costs): $165,880
Transferred-in costs: $86,080
Direct materials: $13,200
Conversion cost: $66,600
Step 4
Costs added in current period
Transferred-in costs: $52,480
Direct materials: $13,200
Conversion cost: $48,600
Divide by equivalent units of work done in current period (Exhibit 18-10)
Transferred-in costs: 400
Direct materials: 440
Conversion cost: 450
Cost per equivalent unit of work done in current period (quotient of costs added and equivalent units of work done):
Transferred-in costs: $131.20
Direct materials: $30.00
Conversion cost: 108.00
Step 5: Assignment of costs
Completed and transferred out (440 units)
Work in process, beginning (240 units)
Total production costs (sum of transferred-in costs, direct materials, and conversion costs): $51,600
Transferred-in costs: $33,600
Direct materials: $0
Conversion cost: $18,000
Costs added to beginning work in process in beginning
Total production costs (sum of transferred-in costs, direct materials, and conversion costs): 16,920
Transferred-in costs: $33,600 (refer to note a)
Direct materials: product of 0 and $131.20 (refer to note a)
Conversion cost: product of 90 and $108 (refer to note a)
Total from beginning inventory
Total production costs (sum of transferred-in costs, direct materials, and conversion costs): 68,520
Started and completed (200 units)
Total production costs (sum of transferred-in costs, direct materials, and conversion costs): $53,840
Transferred-in costs: product of 200 and $131.20 (refer to note b)
Direct materials: product of 200 and $30 (refer to note b)
Conversion cost: product of 200 and $108 (refer to note b)
Total costs of units completed and transferred out
Total production costs (sum of transferred-in costs, direct materials, and conversion costs): $122,360
Work in process ending (200 units)
Total production costs (sum of transferred-in costs, direct materials, and conversion costs): $43,520
Transferred-in costs: product of 200 and $131.20 (refer to note c)
Direct materials: product of 0 and $30 (refer to note c)
Conversion cost: product of 160 and $108 (refer to note c)
Total costs accounted for
Total production costs (sum of transferred-in costs, direct materials, and conversion costs): $165,880
Transferred-in costs: $86,080
Direct materials: $13,200
Conversion cost: $66,600
(4) Note a: Equivalent units used to complete beginning work in process from Exhibit 18-10, Step 2.
Note b: Equivalent units started and completed from Exhibit 18-10, Step 2.
Note c: Equivalent units in ending work in process from Exhibit 18-10, Step 2.
Remember that in a series of interdepartmental transfers, each department is regarded as separate and distinct for accounting purposes. The journal entry for the transfer from testing to Finished Goods (see Exhibit 18-11) is shown below:

The table depicts the journal entry for the transfer from testing to finished goods. The details of the table are as follows:
1. Finished goods control: 122,360
2. Work in process, testing: 122,360
3. To record the cost of goods completed and transferred from testing to Finished Goods.
The entries in the Work in Process—Testing account (see Exhibit 18-11) are as follows:

The table depicts T-account for work in process: testing. The details of the table are as follows:
1. Beginning inventory, March 1: 51,600
Transferred-in costs: 52,480
Direct materials: 13,200
Conversion costs: 48,600
Transferred out: 122,360
2. Ending inventory, March 31: 43,520