Lopez Company reported the following current-year data for its only product. The company uses a periodic inventory system, and its ending inventory consists of 480 units160 from each of the last three purchases. Jan. 1 Beginning inventory Mar. 7 Purchase July 28 Purchase Oct. 3 Purchase Dec. 19 Purchase Totals 260 units @ $4.40 560 units @ $5.25 1,200 units @ $4.90 1,080 units @ $5.20 560 units @ $6.50 3,660 units $ 1,144 2,940 5,880 5,616 3,640 $ 19, 220 (a-d) Determine the cost assigned to ending inventory and to cost of goods sold for the following. (Do not round intermediate calculations and round your answers to 2 decimal places.) Ending Inventory Cost of Goods Sold (a) Specific identification (b) Weighted average (c) FIFO (d) LIFO