Solution :
a).
Estimated overhead 1,250,000
Divide by the estimated machine hours 50,000
Predetermined overhead rate 25
Actual machine hours 54,300
Multiply by predetermined overhead rate 25
The factory overhead amount applied $ 1,357,500
b).
Actual factory overhead 1,348,800
Less : factory overhead amount applied 1,357,500
The underapplied amount is $ 8700