Standard costing method, assigning costs. Suppose Bio Doc determines standard costs of $8.25 per equivalent unit for direct materials and $12.70 per equivalent unit for conversion costs for both beginning work in process and work done in the current period.

1. Using the standard costing method.

Note that you first need to calculate the equivalent units of work done in the current period (for direct materials and conversion costs) to complete beginning work in process, to start and complete new units, and to produce ending work in process.

2. Compute the total direct materials and conversion costs variances for July 2011.

Equivalent Units

Physical Units

Direct Materials

Conversion Costs

Work in process, July 1

8,500

8,500

1,700

Started during July

35,000

Completed and transferred out during July

33,000

33,000

33,000

Work in process, July 31

10,500

10,500

6,300

Total Costs for July 2008

Work in process, beginning

Direct materials

$63,100

Conversion costs

45,510

$108,610

Direct materials added during July

284,900

Conversion costs added during July

485,040

Total costs to account for

$878,550