You assemble the following information for Riverbed Department Store, which computes its inventory under the dollar-value LIFO method. Inventory on January 1, 2020 Purchases Increase in price level for year Cost Retail $304,200 $390,000 499,200 624,000 9% Compute the cost of the inventory on December 31, 2020, assuming that the inventory at retail is (a) $382,590 and (b) $474,695. (Round ratios for computational purposes to 0 decimal places, e.g. 78% and final answers to 0 decimal places, e.g. 28,987.) (a) Cost of the inventory on December 31, 2020 273780 (b) Cost of the inventory on December 31, 2020 343875