In: Accounting
Waymire Ltd. currently uses a traditional costing system based on direct labour hours to allocate overhead. This year, the company has budgeted to produce 1668 units of one of its products. Each unit requires 5 hours of direct labour.
For the coming year, the company is considering changing to an activity based costing system by allocating overhead based on 3 activities. The following are the activities, budgeted total cost and cost drivers per activity for the upcoming year:
| 
 Activity  | 
 Cost driver  | 
 Cost  | 
 Cost Base Volume  | 
| 
 Processing  | 
 machine hours  | 
 $864433  | 
 20017  | 
| 
 Maintenance  | 
 direct labour hours  | 
 $413018  | 
 90878  | 
| 
 Inspection  | 
 # of inspections  | 
 $718840  | 
 40205  | 
Waymire Ltd. has estimated the consumption of each of the
activities for this product: 1909 machine hours and 3167
inspections.
What is the product’s overhead cost per unit if Waymire decides to implement the activity-based costing system?
Select one:
Solution
| Overhead cost per unit | $ 106.10 | 
Working
| Calculation of Activity rates | |||||
| Activity Cost Pool | Activity driver | Overhead Cost (A) | Expected Activity (B) | Activity rate (A/B) | |
| Processing | Number of machine hour | $ 864,433 | 20017 | $ 43.18 | Per machine hour | 
| Maintenance | Number of labor hour | $ 413,018 | 90878 | $ 4.54 | Per labor hour | 
| Inspection | Number of inspection | $ 718,840 | 40205 | $ 17.88 | Per inspection | 
.
| Activity name | Activity Rates | Activity | ABC Cost | 
| (A) | (B) | (A x B) | |
| Processing | $ 43.18 | 1,909.00 | $ 82,440.06 | 
| Maintenance | $ 4.54 | 8,340.00* | $ 37,903.23 | 
| Inspection | $ 17.88 | 3,167.00 | $ 56,623.96 | 
| Total Overheads assigned | $ 176967.25 | ||
| Production | 1,668.00 | ||
| Overhead cost per unit | $ 106.10 | 
*Labor Hours = 1668 x 5