Answer:
$16.56 per direct labor hour.
Step-by-step explanation:
Plant wide predetermined overhead rate for the year
= Total estimated overhead cost ÷ Total estimated allocation base
= $712,000 / 43,000 direct labor hour
= $16.56 per direct labor hour.
Note : Total estimated overhead cost
Fixed manufacturing overhead $540,000
Add: Variable manufacturing overhead ($4 × 43,000 hour) $172,000
Total estimated manufacturing cost $712,000