$87,975
15.30
Explanation:
The computation of unit cost and total cost is shown below:-
Managers' salary ($22,000 + $6,450) $28,450
Rent $18,000
Depreciation on equipment $2,000
Other fixed cost (3,000 × 1.1) 3,300
Total Fixed cost $51,750
Total Cost = $36,225 + $51,750
= $87,975
Unit Cost = 87,975 ÷ 5,750
= 15.30