Accounting Notes
Process Costing
Steps in Process Cost Accounting:
Step 1 - Summarize the flow of production in physical units
Step 2 - Compute output in terms of equivalent units
Equivalent units - a measure of the amount of work done during a period expressed in terms of fully complete units of
output
Number of Number of partially Percentage of the
Equivalent Units = Completed Units * Process completed
Flow of Production Physical Units Direct Materials Conversion Costs
Units to account for:
Beginning Work in Process 1250
Started in production 1500
Total physical units to account for 2750
Units accounted for:
Completed & transferred out 1750 1750 1750
Ending Work in Process (35%) 1000 1000 350 (1000*35%)
Total physical units accounted for 2750
Equivalent Units 2750 2100
Note: Since the units that were transferred out of Work in Process are 100% complete, the equivalents units for both Direct
Material and Conversion costs will be the same as the number of physical units.
Student Learning Assistance Center, San Antonio College, 2004
Step 3 - Summarize the total costs to account for
Direct Materials Conversion Costs Total
Beginning Work in Process 25,000 17,500 42,500
Costs added during the month 10,000 20,500 30,500
Total costs to account for 73,000
Step 4 - Compute the cost per equivalent unit
Direct Materials Conversion Costs
Beginning Work in Process 25,000 17,500
Costs added during the month 10,000 20,500
Total costs 35,000 38,000
Divide by Equivalent Units 2,750 2,100
Cost per Equivalent Unit 12.7273 18.0952
Note: Do not round off the per unit costs to two decimal places yet. Maintaining four decimal places will help reduce any
rounding errors that could occur in the next step.
Step 5 - Assign costs to units completed and to units in ending Work in Process
Direct Materials Conversion Costs Total
Units Completed and transferred out 22,2731 31,6672 53,940
Units in ending Work in Process
Direct Materials 12,7273 12,727
Conversion Costs 6,333 4
6,333
Total cost o f ending Work in Process 19,060
Total cost accounted for 73,000
1
1750 equivalent units * $12.7273 cost per equivalent unit
2
1750 equivalent units * $18.0952 cost per equivalent unit
3
1000 equivalent units * $12.7273 cost per equivalent unit
4
350 equivalent units * $18.0952 cost per equivalent unit
Student Learning Assistance Center, San Antonio College, 2004
Process Costing for a second department - FIFO method
Steps 1 & 2 - Summarize the flow of production in physical units and compute output in terms of equivalent units
Equivalent units
Physical Units Transferred In Direct Materials Conversion Costs
Units to account for:
Beginning Work in Process 1000
Transferred in during the month 1500
Total Physical units to account for 2500
Units accounted for:
Completed & transferred out
From Beginning Work in Process (40%) 500 ----- ----- 3001
Started & Completed 1500 1500 1500 1500
Ending Work in Process (30%) 500 500 500 1502
Total physical units accounted for 2500
Equivalent Units 2000 2000 1950
1
500 physical units * 60% (percentage of work completed this month)
2
500 physical units * 30% (percentage of work completed this month)
Steps 3 & 4 - Summarize total costs t o account for & compute cost per equivalent unit
Transferred In Direct Materials Conversion Costs Total
Beginning Work in Process 23,000
Costs added during the month 17,500 18,000 20,000 55,500
Divide by equivalent units 2000 2000 1950
Cost per equivalent unit 8.75 9.000 10.2564
Total costs to account for 78,500
Student Learning Assistance Center, San Antonio College, 2004
Step 5 - Assign costs to units completed and to units in Ending Work in Process Inventory
Transferred In Direct Materials Conversion Costs Total
Units completed & transferred out to
Finished Goods Inventory
From beginning Work in Process 23,000
Costs added during the month
Direct Materials --------
Conversion costs (300*10.2564) 3,077 3,077
Total completed from beginning inventory 26,077
Units started & completed during the month (1500 * (8.75 + 9.0 + 10.2564)) 42,010
Total costs transferred out 68,087
Ending Work in Process
Transferred in costs (500 * 8.75) 4,375 4,375
Direct Materials (500 * 9.00) 4,500 4,500
Conversion Costs (150 * 10.2564) 1,538 1,538
Total ending Work in Process 10,413
Total costs accounted for 78,500
Weighted Average Method
Same as under FIFO method except as noted below
Step 1 & 2 - all units complete and transferred out are treated identically (Beginning inventory and units started and completed are combined
together under t he units accounted for section)
Step 3 & 4 - all costs incurred (this period and prior period) for the physical units are added together to find total costs for equivalent units
produced. (FIFO only uses current period costs to find cost per equivalent unit)
Step 5 - Basically the same as FIFO
Student Learning Assistance Center, San Antonio College, 2004
Flow of cost s in a Process Cost System:
Materials IM Manufacturing IL Manufacturing
Inventory Overhead Wages
DL DL
DM DM
Applied OH Applied OH
Work in Process Work in Process Finished Cost of
Process A Process B Goods Goods Sold
Completed Units Completed Units Units Sold
transferred to transferred to
next process Finished Goods
DL = Direct Labor
IL = Indirect Labor
DM = Direct Materials
IM = Indirect Materials
OH = Overhead
Student Learning Assistance Center, San Antonio College, 2004
