Giving the following information:
Assembly:
Predetermined overhead rate= $12 per direct labor hour
Direct materials= $345
Direct labor= $75
Testing & Packaging:
Predetermined overhead rate= $8 per direct labor hour
Direct materials= $27
Direct labor= $15
Direct labor rate= $15 per hour
First, we need to allocate costs based on actual direct labor hours worked:
Assembly:
Number of direct labor hours= 75 / 15= 5 hours
Testing & Packaging:
Number of direct labor hours= 15 / 15= 1 hour
Allocated MOH= Estimated manufacturing overhead rate* Actual amount of allocation base
Assembly:
Allocated MOH= 12*5= $60
Testing & Packaging:
Allocated MOH= 8*1 = $8
Now, we can calculate the total manufacturing cost of Job N-60
Assembly:
Manufacturing cost= 345 + 75 + 60
Total manufacturing cost= $480
Testing & Packaging:
Manufacturing cost=27 + 15 + 8= $50
Total manufacturing cost= 480 + 50
Total manufacturing cost= $530
Finally, the unitary cost:
Unitary cost= total cost / number of units
Unitary cost= 530 / 10
Unitary cost= $53