Response:
Unit Cost = $196
Clarification:
Based on the provided data from the question,
Total estimated variable overhead = 4×31,400 = $125,600
Total estimated overhead = $125,600 + $219,800 = $345,400
Predetermined overhead rate = $345,400 ÷ 31,400 = $11 per hour
Total overhead applied = $11 × 20 = $220
Therefore, total job cost = Direct material + Direct Labor + Total overhead
= $580 + $1,160 + $220
= $1,960
Thus, the Unit cost = $1,960 ÷ 10 = $196