In: Accounting
Department G had 1,920 units 25% completed at the beginning of the period, 12,400 units were completed during the period, 1,600 units were 20% completed at the end of the period, and the following manufacturing costs were debited to the departmental work in process account during the period:
| Work in process, beginning of period | $32,900 | 
| Costs added during period: | |
| Direct materials (12,080 units at $9) | 108,720 | 
| Direct labor | 85,680 | 
| Factory overhead | 48,960 | 
All direct materials are placed in process at the beginning of production, and the first-in, first-out method of inventory costing is used. What is the total cost of 1,920 units of beginning inventory that were completed during the period?
a.$45,572
b.$32,900
c.$50,340
d.$48,740
Option D - $ 48,740
since the direct raw material is added at the beginning of the process and it is included in the opening work in process inventory of $32,900
| A | B | C= A*B | |
| Percentage of Completion | Units | Equivalent units | |
| Opening inventory | 75% | 1920 | $ 1,440 | 
| Inventory started and ended during the year | 100% | 12400-1920 = 10480 | $ 10,480 | 
| Ending inventory | 20% | 1600 | $ 320 | 
| $ 12,240 | 
*since 12400 units are completed in the year it has 1920 units from opening inventory.
| Particulars | Amount | |
| A | Direct Labour | $ 85,680 | 
| B | factory overhead | $ 48,960 | 
| C=A+B | Total expenses | $ 1,34,640 | 
| D | Equivalent units | $ 12,240 | 
| E = C/D | Cost per unit | $ 11 | 
| F | Equivalent units in opening inventory | $ 1,440 | 
| G =E*F | Cost incurred opening inventory | $ 15,840 | 
| H | Opening work in progress cost | $ 32,900 | 
| I = G+H | Total Cost | $ 48,740 |