Balerio Corporation's relevant range of activity is 10,000 units to 14,000 units. When it produces and sells 12,000 units, its average costs per unit are as follows: Direct materials Direct labor Variable manufacturing overhead Fixed manufacturing over head Fixed selling expense Fixed administrative expense Sales commissions Variable administrative expense Average Cost per Unit $ 6.80 $ 3.40 $ 1.70 $13.60 $ 2.40 $ 2.00 $ 0.50 $ 0.40 Required: a. For financial reporting purposes, what is the total amount of product costs incurred to make 12,000 units? (Do not round intermediate calculations.) b. If 13,000 units are sold, what is the variable cost per unit sold? (Round "Per unit" answer to 2 decimal places.) c. If 13,000 units are sold, what is the total amount of variable costs related to the units sold? (Do not round intermediate calculations. Round "Per unit" answer to 2 decimal places.) d. If the selling price is $18.40 per unit, what is the contribution margin per unit sold? (Round "Per unit" answer to 2 decimal places.) e. What incremental manufacturing cost will the company incur if it increases production from 12,000 to 12,001 units? (Round "Per unit answer to 2 decimal places.)