Skysong, Inc. had a beginning inventory of 145 units of Product RST at a cost of $ 9 per unit. During the year, purchases were Feb. 20 670 units at $ 10 Aug. 12 470 units at $12 May 5 570 units at $11 Dec. 8 145 units at $13 Skysong uses a periodic inventory system Sales totaled 1.540 units Determine the cost of goods available for sale The cost of goods available for sale $ 201495 Calculate Average Cost. (Round answer to 3 decimal places, s 5.125.) Average Cost $ Determine the ending inventory and the cost of goods sold under each of the assumed cost flow methods (FIFO, LIFO, and average-cost). (Round answers to decimal places, eg. 150.) FIFO LIFO AVERAGE-COST The ending inventory $ $ The cost of goods sold $ $