Indigo Co. follows the practice of valuing its inventory at the lower-of-cost-or-market. The following information is available from the company's inventory records as of December 31, 2017 Completion & Disposal Cost/Unit Estimated Price/Unit $11.76 10.53 8.06 7.06 7.50 Normal Profit Unit Cost Replacement Cost/Unit Selling Margin/Unit Item Quantity 1,500 1,200 1,400 1,400 1,800 $8.40 9.18 6.27 4.26 7.17 $9.41 8.85 6.05 4.70 7.06 $1.68 1.01 1.29 0.90 0.78 $2.02 1.34 0.67 1.68 1.12 Greg Forda is an accounting clerk in the accounting department of Indigo Co., and he cannot understand why the market value keeps changing from replacement cost to net realizable value to something that he cannot even figure out. Greg is very confused, and he is the one who records inventory purchases and calculates ending inventory. You are the manager of the department and an accountant