Weighted-average method, equivalent units

Weighted-average method, equivalent units. Consider the following data for the Assembly Division of Fenton Watches, Inc.: The Assembly Division uses the weighted-average method of process costing.

The Correct Answer and Explanation is :

To calculate the equivalent units using the weighted-average method for the Assembly Division of Fenton Watches, Inc., we follow these steps:

1. Summarize the Flow of Physical Units:

Physical UnitsUnits
Beginning Work-in-Process (WIP)80
Units Started During May500
Total Units to Account For580
Units Completed and Transferred Out460
Ending Work-in-Process (WIP)120
Total Units Accounted For580

2. Compute Equivalent Units:

Equivalent units measure the work done during a period, expressed in fully completed units. Under the weighted-average method, we consider work done to date.

  • Units Completed and Transferred Out: These are 460 fully complete units for both direct materials and conversion costs.
  • Ending WIP: 120 units, with 60% completion for direct materials and 30% for conversion costs.
Equivalent UnitsDirect MaterialsConversion Costs
Units Completed and Transferred Out460 × 100% = 460460 × 100% = 460
Ending WIP120 × 60% = 72120 × 30% = 36
Total Equivalent Units532496

3. Calculate Cost per Equivalent Unit:

To find the cost per equivalent unit, divide the total costs by the equivalent units.

  • Total Costs:
  • Direct Materials: $3,713,360
  • Conversion Costs: $1,483,040
  • Cost per Equivalent Unit:
  • Direct Materials: $3,713,360 ÷ 532 = $6,980
  • Conversion Costs: $1,483,040 ÷ 496 = $2,990

4. Assign Costs to Units Completed and Ending WIP:

  • Units Completed and Transferred Out:
  • 460 units × ($6,980 + $2,990) = $4,586,200
  • Ending WIP:
  • Direct Materials: 72 units × $6,980 = $502,560
  • Conversion Costs: 36 units × $2,990 = $107,640
  • Total Ending WIP Cost: $502,560 + $107,640 = $610,200

5. Verify Total Costs Accounted For:

  • Total Costs Assigned:
  • Units Completed and Transferred Out: $4,586,200
  • Ending WIP: $610,200
  • Total: $4,586,200 + $610,200 = $5,196,400

This matches the total costs to account for, ensuring accuracy in our calculations.

In summary, the weighted-average method blends costs from previous and current periods, providing a comprehensive view of production costs. By calculating equivalent units, we allocate costs accurately between completed units and those still in process, ensuring precise inventory valuation and cost of goods sold determination.

Process Costing Flowchart
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