The inventory of Royal Decking consisted of five products. Information about the December 31, 2021, inventory is as follows: Per Unit Product Cost Replacement Cost Selling Price A $ 50 $ 45 $ 70 B 90 80 110 C 50 65 90 D 110 80 140 E 30 38 40 Selling costs consist of a sales commission equal to 15% of selling price and shipping costs equal to 5% of cost. The normal profit is 30% of selling price.