Kingbird, Inc. uses a periodic inventory system. Its records show the following for the month of May, in which 130 units were sold. Date Explanation Unit Cost Units Total Cost 60 $13 $780 May 1 15 Inventory Purchases Purchases 50 16 800 24 70 17 1,190 $2,770 Totals 180 Compute the ending inventory at May 31 and cost of goods sold using the FIFO, LIFO, and average-cost methods. (Round per unit cost to 3 decimal places, e.g. 15.647 and final answers to O decimal places, e.g. 5,125.) FIFO LIFO Average-cost Ending inventory at May 31 $ 850 650 $ Cost of goods sold $ 1920 2120 $