Answer:
125%
Step-by-step explanation:
The computation of predetermined overhead rate is shown below:-
Manufacturing overhead = $4,090 - ($570 + $370 + $600 + $800)
= $4,090 - $2,340
= $1,750
Total direct labor = $600 + $800
= $1,400
Manufacturing overhead = Predetermined overhead rate × Direct labor
Predetermined overhead rate = Manufacturing overhead ÷ Direct labor
= $1,750 ÷ $1,400
= 125%
Therefore for computing the predetermined overhead rate we simply divide the manufacturing overhead by direct labor.