Answer:
The overhead cost assigned to Job 313 can be calculated by multiplying the direct labor cost by 125%:
Overhead cost = $12,000 * 125% = $12,000 * 1.25 = $15,000
The total cost of Job 313 can be calculated by adding the direct materials cost, direct labor cost, and overhead cost:
Total cost = $10,000 + $12,000 + $15,000 = $37,000
The cost per unit can be calculated by dividing the total cost by the number of units produced:
Cost per unit = $37,000 / 1,000 units = $37 per unit