Answer:
Step-by-step explanation:
Predetermined overhead rate is based on a cost formula that estimated $346,000 of manufacturing overhead for an estimated activity level 69,200 direct labor hours. So Overhead rate is 346,000/69,200 = $5/labour hour
Applied overhead = 180,000/4*5 = $225,000
Actual overhead = 60,000[280,000-220,000] +72,000+57,000+88,000 = $277,000
Under applied overhead = 225,000-277,000 = $52000