*P9.14 (LO 7) (Change to LIFO Retail) Diderot Stores Inc., which uses the conventional retail inventory method, wishes to change to the LIFO retail method beginning with the accounting year ending December 31, 2020. Amounts as shown below appear on the store's books before adjustment. Inventory, January 1, 2020 Purchases in 2020 Cost $ 15,800 116,200 Retail $ 24,000 184,000 12,000 5.500 Markups in 2020 Markdowns in 2020 Sales revenue in 2020 175,000 You are to assume that all markups and markdowns apply to 2020 purchases, and that it is appropriate to treat the entire inventory as a single department. Instructions Compute the inventory at December 31, 2020, under the following methods. a. The conventional retail method. b. The last-in, first-out retail method, effecting the change in method as of January 1, 2020. Assume that the cost-to-retail percentage for 2019 was recomputed correctly in accordance with procedures necessary to change to LIFO. This ratio was 59%. (AICPA adapted)