Answer and Explanation:
1. The computation of overhead rate for each activity is shown below:-
Overhead rate for each activity Overhead Rate
Materials handling 37
($38,850 ÷ 1,050)
Machine setups 54
($26,190 ÷ 485)
Quality inspections 48
(23,520 ÷ 490)
2. The computation of assignment of manufacturing overhead costs for April to the two products using activity-based costing is shown below:-
Assignment of Instruments Gauges
manufacturing
overhead costs
Materials handling $37 × 420 $15,540 $37 × 63 $23,310
Machine setups $54 × 225 $12,150 $54 × 260 $14,040
Quality inspections $48 × 265 $12,720 $48 × 225 $10,800
Total cost assigned $40,410 $48,150
Overhead cost
per Unit $40,410 ÷ 49 $824.69 $48,150 ÷ 297 $162.12
Therefore we have applied the above formula.