In: Accounting
Mattawa Manufacturing Inc. has four categories of overhead. The expected overhead costs for each of the categories for the next year are as follows:
Expected Costs Cost Driver
Activity Maintenance $510,000
Machine hours 60,000
Material handling 250,000
Material moves 20,000
Setups 60,000
Setups 3,000
Inspection 21,000
Inspections 12,000
Currently, the company applies overhead using a predetermined overhead rate based upon budgeted direct labour hours of 100,000. The company has been asked to submit a bid on a proposed job. Usually bids are based upon full manufacturing costs plus a percentage of 10 percent. Estimates for the proposed job are as follows:
Direct materials $30,000
Direct labour $24,000
Number of direct labour hours 8,000
Number of material moves 100
Number of inspections 120
Number of setups 24
Number of machine hours 4,000
Required:
1. If the company used activity-based cost drivers to assign overhead, calculate the bid price of the proposed job.
2. If the company used direct labour hours as the cost driver, calculate the bid price of the proposed job.
Answer 1. | |||||
ABC Costing | |||||
Calculation of Activity Rate | |||||
Activity | Overhead | Cost Driver Quantity | Allocation Rate | ||
Activity Maintenance | 510,000 | 60,000 | mach. hours | 8.50 | per mach. hour |
Material Handling | 250,000 | 20,000 | material moves | 12.50 | per material move |
Setups | 60,000 | 3,000 | setups | 20.00 | per setup |
Inspections | 21,000 | 12,000 | inspections | 1.75 | per inspecton |
Total | 841,000 | ||||
Assigning Overhead Cost | |||||
Using ABC Method | |||||
Activity Based Overhead Rate | Proposed Bid | ||||
Cost Driver Incurred | OH Allocated | ||||
Activity Maintenance | 8.50 | per mach. hour | 4,000 | mach. hours | 34,000 |
Material Handling | 12.50 | per material move | 100 | material moves | 1,250 |
Setups | 20.00 | per setup | 24 | setups | 480 |
Inspections | 1.75 | per inspecton | 120 | inspections | 210 |
Total Overhead Cost | 35,940 | ||||
Calculation of Bid Price | |||||
Under ABC Costing | |||||
Direct Material | 30,000 | ||||
Direct Labor | 24,000 | ||||
Overhead Applied | 35,940 | ||||
Total Cost | 89,940 | ||||
Add: Profit Margin - 10% | 8,994 | ||||
Bid Price | 98,934 | ||||
Answer 2. | |||||
Predetermined Overhead Rate = $841,000 (Total Overhead) / 100,000 DLH (Allocation Base) | |||||
Predetermined Overhead Rate = $8.41 per dlh | |||||
Calculation of Bid Price | |||||
Using Direct Labor Hour as Cost Driver | |||||
Direct Material | 30,000 | ||||
Direct Labor | 24,000 | ||||
Overhead Applied - 8,000 DLH X $8.41 | 67,280 | ||||
Total Cost | 121,280 | ||||
Add: Profit Margin - 10% | 12,128 | ||||
Bid Price | 133,408 |