REI sells snowboards. Assume the following information relates to REI's purchases of snowboards during September. During the same month, 102 snowboards were sold. REI uses a periodic inventory system. Date Explanation Units Unit Cost Total Cost Sept. 1 Inventory 13 $107 $ 1,391 Sept. 12 Purchases 49 110 5,390 Sept. 19 Purchases 53 111 5,883 Sept. 26 Purchases 20 112 2,240 Totals 135 $14,904 Compute the ending inventory at September 30 using FIFO, LIFO, and average-cost. (Round average cost per unit to 3 decimal places, e.g. 125.153 and final answers to O decimal places, e.g. 125.) FIFO Ending inventory at September 30 $ LIFO AVERAGE-COST $ Compute the ending inventory at September 30 using FIFO, LIFO, and average-cost. (Round average cost per unit to 3 decimal places, e.g. 125.153 and final answers to O decimal places, e.g. 125.) Ending inventory at September 30 eTextbook and Media FIFO LIFO $ AVERAGE-COST Compute the cost of goods sold for the month using the FIFO, LIFO, and average-cost methods. (Round average cost per unit to 3 decimal places, e.g. 125.153 and final answers to O decimal places, e.g. 125.) Cost of goods sold $ eTextbook and Media FIFO $ LIFO AVERAGE-COST $