You assemble the following information for Swifty 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 $561,600 $720,000 921,600 1,152,000 9% Compute the cost of the inventory on December 31, 2020, assuming that the inventory at retail is (a) $706,320 and (b) $876,360. (Round ratios for computational purposes to O 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 $ (b) Cost of the inventory on December 31, 2020 $