Question

Departmental Overhead Rates Lansing, Inc., provided the following data for its two producing departments:

Molding Polishing Total
Estimated overhead $400,000 $80,000 $480,000
Direct labor hours (expected and actual):
Form A 1,000 5,000 6,000
Form B 4,000 15,000 19,000
Total 5,000 20,000 25,000

Machine hours:
Form A 3,500 3,000 6,500
Form B 1,500 2,000 3,500
Total 5,000 5,000 10,000

Machine hours are used to assign the overhead of the Molding Department, and direct labor hours are used to assign the overhead of the Polishing Department. There are 25,000 units of Form A produced and sold and 50,000 of Form B.

Required:
a. Calculate the overhead rates for each department.
b. Using departmental rates, assign overhead to the two products and calculate the overhead cost per unit.

Answer 1

Answer and Explanation:

The computation is shown below:

1. Overhead rates

For Molding Deptt

= Total Estimated overhead ÷ Total Machine hours

= $400,000 ÷ 5,000

= $80 per machine hour

For Polishing Deptt

= Total Estimated overhead ÷ Total Labor hours

= $80,000 ÷ 20,000

= $4 per machine hour

2. Overheads assigned to Form A is

= (80 × 3500) + (4 × 5000)

= $300,000

Overheads assigned to Form B is

= (80 × 1500) + (4 × 15000)

= $180,000

Now

Overhead cost per unit

Form A = $300,000 ÷ 30,000 = $10 per unit

Form B = $180,000 ÷ 50,000 = $3.6 per unit