Skysong sells a snowboard, EZside, that is popular with snowboard enthusiasts. The following is information relating to Skysong's beginning inventory and purchases of EZslide snowboards during September. During the same month, 102 EZslide snowboards were sold. Skysong uses a periodic inventory system Date Explanation Units Unit Cost Total Cost Sept. 1 Inventory 11 $90 $990 Sept 12 Purchases 46 93 4278 Sept. 19 Purchases 48 94 4,512 Sept. 26 Purchases 19 95 1.805 Totals 124 $11585 Compute the ending inventory at September 30 and the cost of goods sold using the FIFO, LIFO and average cost methods. (Round per unit cost to 3 decimal places, es, 15.647 and final answers to decimal places, eg. 5,125) Compute the ending inventory at September 30 and the cost of goods sold using the FIFO, LIFO and average-cost methods. {Round per unit cost to 3 decimal places, eg 15.647 and final answers to O decimal places, eg, 5.125.) FIFO LIFO Average-cost The ending inventory at September 30 $ $ $ Cost of goods sold $ $ $