In: Accounting
Lansing, Inc., provided the following data for its two producing departments:
Molding | Polishing | Total | ||||
Estimated overhead | $375,000 | $80,000 | $455,000 | |||
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 | 3,600 | 3,000 | 6,600 | |||
Form B | 1,400 | 2,000 | 3,400 | |||
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 20,000 units of Form A produced and sold and 50,000 of Form B.
Required:
1. Calculate the overhead rates for each department.
Molding | $ per machine hour |
Polishing | $ per direct labor hour |
2. Using departmental rates, assign overhead to the two products and calculate the overhead cost per unit. Round your answers to the nearest cent.
Unit Overhead Cost | |
Assigned unit overhead cost for Form A | $ per unit |
Assigned unit overhead cost for Form B | $ per unit |
How does this compare with the plantwide rate unit cost, using
direct labor hours?
Relative to the plantwide rate, the cost increased for
Form A and decreased for Form B.
3. What if the machine hours in Molding were 1,200 for Form A and 3,800 for Form B and the direct labor hours used in Polishing were 5,000 and 15,000, respectively? Calculate the overhead cost per unit for each product using departmental rates. Round your answers to the nearest cent.
Unit Overhead Cost | |
Form A | $ per unit |
Form B | $ per unit |
Compare with the plantwide rate unit costs calculated in
Requirement 2. What can you conclude from this outcome?
Relative to the plantwide rate, the cost increased for Form A and decreased for Form B.
1)
Molding | Polishing | |
Estimated overhead | 375000 | 80000 |
Estimated activity | 5000 machine hours | 20000 direct labor hours |
Overhead rate | 375000/5000 =$ 75 per MH | 80000/20000=$ 4 per DLH |
2)If departmental overhead rate is used :
Form A | Form B | |
Molding | 3600*75=270000 | 1400*75=105000 |
polishing | 5000*4=20000 | 15000*4=60000 |
Total overhead | 290000 | 165000 |
Number of units | 20000 | 50000 |
Overhead cost per unit | 14.50 | 3.30 |
If Plantwide overhead rate is used,Overhead rate = 455000/25000 = $ 18.2 per DLH
Form A | Form B | |
number of DLH | 6000 | 19000 |
Overhead rate | 18.2 | 18.2 |
Total overhead allocated | 109200 | 345800 |
Number of units | 20000 | 50000 |
Unit overhead cost | 109200/20000=5.46 | 6.916 |
Relative to the plantwide rate, the cost increased for Form A and decreased for Form B under Departmental overhead rate
3)
Form A | Form B | |
Molding | 1200*75=90000 | 3800*75=285000 |
polishing | 5000*4=20000 | 15000*4=60000 |
Total overhead | 110000 | 345000 |
Number of units | 20000 | 50000 |
Overhead cost per unit | 5.50 | 6.90 |
Relative to the plantwide rate, the cost increased for Form A and decreased for Form B.