Bridgeport Corp.sells a snowboard, EZslide, that is popular with snowboard enthusiasts. Below is information relating to Bridgeport Corp's purchases of EZslide snowboards during September. During the same month, 102 EZslide snowboards were sold. Bridgeport Corp. uses a periodic inventory system. Date Explanation Units Unit Cost Total Cost Sept. 1 Inventory $102 $1.224 4,725 Sept. 12 Purchases Sept. 19 Purchases 6,042 Sept. 26 Purchases 2.568 Totals $14.559 (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, s. 125.153 and final answers to decimal places, e.g. 125.) FIFO LIFO AVERAGE-COST The ending inventory at September 30 $ 5830 (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 $