Flint Corporation sells a snowboard, EZslide, that is popular with snowboard enthusiasts. Below is information relating to Flint Corporation's purchases of EZslide snowboards during September. During the same month, 107 EZslide snowboards were sold. Flint Corporation uses a periodic inventory system. Date Units Unit Cost 13 Sept. 1 Sept. 12 Sept. 19 Sept. 26 Explanation Inventory Purchases Purchases 49 53 $110 113 114 Total Cost $ 1,430 5,537 6,042 2,300 $15,309 Purchases 20 115 Totals 135 {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, eg. 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, ey 125.153 and final answers to decimal places, ey. 125.) FIFO AVERAGE-COST Cost of goods sold LIFO $