average costs per unit are as follows: Average Cost per Unit Direct materials Direct labor $ 7.00 $ 4.00 Variable manufacturing overhead $ 1.50 Fixed manufacturing overhead $ 5.00 Fixed selling expense $ 3.50 Fixed administrative expense Sales commissions $ 2.50 $ 1.00 Variable administrative expense $ 0.50 Required: 1. For financial accounting purposes, what is the total amount of product costs incurred to make 20,000 units? 2. For financial accounting purposes, what is the total amount of period costs incurred to sell 20,000 units? 3. For financial accounting purposes, what is the total amount of product costs incurred to make 22,000 units? 4. For financial accounting purposes, what is the total amount of period costs incurred to sell 18,000 units? 1. Total amount of product costs 2 Total amount of penod costs incurred 3. Total amount of product costs 4. Total amount of period costs 8