Answer and Explanation:
The computation of the missing amount is as follows
Components produced 40,000 60,000 90,000
Total cost
Total variable cost $1,400,000 $2,100,000 $3,150,000
(60,000 × $35) (90,000 × $35)
Total fixed cost $800,000 $800,000 $800,000
Total cost $2,200,000 $2,900,000 $3,950,000
Cost per unit
Variable cost per unit $35 $35 $35
($1,400,000 ÷ 40,000)
Fixed cost per unit $20 $13.33 $8.89
($800,000 ÷ 40,000) ($800,000 ÷ 60,000) ($800,000 ÷ 90,000)
Total cost per unit $55 $46.33 $43.89
The total cost per unit come from
= Variable cost per unit + fixed cost per unit