Kingbird, Inc. sells a snowboard, EZslide, that is popular with snowboard enthusiasts. Below is information relating to Kingbird, inc's purchases of EZslide snowboards during September. During the same month, 110 EZslide snowboards were sold Kingbird Inc uses a periodic inventory system. Date Sept. 1 Sept. 12 Sept. 19 Sept. 26 Explanation Inventory Purchases Purchases Purchases Totals Units 11 53 55 25 Unit Cost $110 113 Total Cost $ 1,210 5.989 6,270 2.875 $16,344 114 115 144 (a) Compute the ending inventory at September 30 using the FIFO, LIFO and average-cost methods. (Round average cost per unit to 3 decimal places, 28. 125.153 and final answers to decimal places, eg. 125.) FIFO LIFO AVERAGE-COST The ending inventory at September 30 $ $ (b) Compute the cost of goods sold at September 30 using the FIFO, LIFO and average-cost methods. (Round average cost per unit to 3 decimal places, eg. 125.153 and final answers to decimal places, eg. 125.) FIFO LIFO AVERAGE-COST Cost of goods sold