(Standard process costing) Donbrowski Co. manufactures reflective lenses and uses a standard process costing system. For May 2010, the following data are available:

Standard Cost of 1 Unit

Direct material

$ 5.50

Conversion

12.50

Total manufacturing cost

$18.00

Beginning WIP Inventory

10,000 units (100% DM; 70% conversion)

Started in May

180,000 units

Completed in May

150,000 units

Ending WIP Inventory

? units (100% DM; 60% conversion)

Actual costs for May:

Direct material

$1,001,000

Conversion

2,136,000

Total actual cost

$3,137,000

a. Prepare an equivalent units of production schedule.

b. Prepare a cost of production report and assign costs to goods transferred and to inventory.

c. Calculate and label the variances and close them to Cost of Goods Sold.