Exercise 6-5 Swifty Co. uses a periodic inventory system. Its records show the following for the month of May, in which 80 units were sold. Date Explanation Units Unit Cost Total Cost May 1 Inventory 35 11 385 15 Purchase 13 338 26 45 24 Purchase 14 630 Total 106 1,353 Compute the ending inventory at May 31 and cost of goods sold using the FIFO and average-cost methods. (Round per unit cost to 2 decimal places, e.g. 15.25 and final answers to 0 decimal places, e.g. 125.) FIFO Average-Cost The ending inventory at May 31 Cost of goods sold