Question
Xania Inc. uses a normal job-order costing system. Currently, a plantwide overhead rate based on machine hours is used. Xania's plant manager has heard that
Xania Inc. uses a normal job-order costing system. Currently, a plantwide overhead rate based on machine hours is used. Xania's plant manager has heard that departmental overhead rates can offer significantly better cost assignments than a plantwide rate can offer. Xania has the following data for its two departments for the coming year:
Department A | Department B | |
Overhead costs (expected) | $750,000 | $330,000 |
Normal activity (machine hours) | 6,000 | 10,000 |
Normal activity (direct labor hours) | 2,000 | 1,000 |
Required:
- Compute a predetermined overhead rate for the plant as a whole based on machine hours.
- Compute predetermined overhead rates for each department using machine hours for Department A and direct labor hours for Department B. (Note: Carry your calculations out to the nearest dollar.)
- Job 73 was composed of 1,000 units; it has $5,000 of prime costs and used 25 machine hours from Department A and 50 machine hours from Department B; it used 30 direct labor hours from Department A and 20 direct labor hours from Department B. Job 74 was composed of 1,200 units; it has $6,000 of prime costs and used 40 machine hours from Department A and 15 machine hours from Department B; it used 20 direct labor hours from Department A and 50 direct labor hours from Department B. Compute the cost per unit from Job 73 and Job 74 using a plant-wide Overhead rate; then compute the cost per unit for Job 73 and Job 74 using a departmental Overhead rate. Be sure to show work (hint: dont forget when computing cost per unit to include all manufacturing costs; hint 2: find the total cost of the job under one method, and then divide by number made to find cost/unit; repeat for the different parts).
Job 73 Plantwide
| Job 73 Departmental |
Job 74 Plantwide
| Job 74 Departmental |
- Using a Plantwide, if actual machine hours for the year were 17,000 hours and actual overhead costs were $1,050,000, how much was overhead under- or over-applied for the year and how would that affect Cost of Goods Sold when it is closed to that account.
$$_________________________ over-applied/under-applied (circle one)
$$_________________________ Cost of Goods Sold increased/decreased (circle one)
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