Answer:
$398,800
Step-by-step explanation:
The computation of total manufacturing overhead costs is shown below:-
Indirect material = $140,000 ÷ 100,000 × 90,000
= $126,000
Indirect labor = $170,000 ÷ 100,000 × 90,000
= $153,000
Factory supplies = $22,000 ÷ 100,000 × 90,000
= $19,800
Total manufacturing cost = Indirect material + Indirect labor + Factory supplies + Depreciation + Taxes + Supervision
= $126,000 + $153,000 + $19,800 + $50,000 + $10,000 + $40,000
= $398,800