In: Accounting
The Matsui Lubricants plant uses the weighted-average method to account for its work-in-process inventories. The accounting records show the following information for a particular day.
| Beginning WIP inventory | |||
| Direct materials | $ | 1,010 | |
| Conversion costs | 527 | ||
| Current period costs | |||
| Direct materials | 24,060 | ||
| Conversion costs | 14,398 | ||
Quantity information is obtained from the manufacturing records and includes the following.
| Beginning inventory | 700 | units | (70% complete as to materials, 54% complete as to conversion)  | 
| Current period units started | 5,700 | units | |
| Ending inventory | 1,900 | units | (50% complete as to materials, 25% complete as to conversion)  | 
Required:
a. Compute the equivalent units for the materials and conversion cost calculations.
b. Compute the cost per equivalent unit for direct materials and conversion costs.
| Equivalent units for materials | |
| Equivalent units for conversion costs | 
  | 
Solution
| Material | Conversion | |
| Equivalent Units of Production | 5,450 | 4,975 | 
.
| Material | Conversion | |
| Cost per equivalent Unit | $ 4.60 | $ 3.00 | 
.
| Material | Conversion | Total | |
| Cost of Ending work in process Inventory | $ 4,370 | $ 1,425 | $ 5,795 | 
| Cost of Units Completed and transferred out | $ 20,700 | $ 13,500 | $ 34,200 | 
Working
| Reconciliation of Units | ||
| A | Beginning WIP | 700 | 
| B | Introduced | 5,700 | 
| C=A+B | TOTAL | 6,400 | 
| D | Transferred out | 4,500 | 
| E=C-D | Ending WIP | 1,900 | 
.
| Statement of Equivalent Units(Weighted average) | |||||||
| Material | Conversion | ||||||
| Units | Complete % | Equivalent units | Complete % | Equivalent units | |||
| Transferred out | 4,500 | 100% | 4,500 | 100% | 4,500 | ||
| Ending WIP | 1,900 | 50% | 950 | 25% | 475 | ||
| Total | 6,400 | Total | 5,450 | Total | 4,975 | 
.
| Cost per Equivalent Units (Weighted average) | ||||
| COST | Material | Conversion | TOTAL | |
| Beginning WIP Inventory Cost (A) | $ 1,010 | $ 527 | $ 1,537 | |
| Cost incurred during period (B) | $ 24,060 | $ 14,398 | $ 38,458 | |
| Total Cost to be accounted for (C=A+B) | $ 25,070 | $ 14,925 | $ 39,995 | |
| Total Equivalent Units(D) | 5,450 | 4,975 | ||
| Cost per Equivalent Units (E=C/D) | $ 4.60 | $ 3.00 | $ 7.60 | 
.
| Statement of cost (Weighted average) | |||||
| Cost | Equivalent Cost/unit | Ending WIP | Transferred | ||
| Units | Cost Allocated | Units | Cost Allocated | ||
| Material | $ 4.60 | 950 | $ 4,370.00 | 4,500 | $ 20,700.00 | 
| Conversion | $ 3.00 | 475 | $ 1,425.00 | 4,500 | $ 13,500.00 | 
| TOTAL | $ 39,995 | TOTAL | $ 5,795 | TOTAL | $ 34,200 |