Pearl Corp. sells a snowboard, EZslide, that is popular with snowboard enthusiasts. Below is information relating to Pearl Corp.'s purchases of EZ slide snowboards during September. During the same month, 102 EZslide snowboards were sold. Pearl Corp. uses a periodic inventory system. Units Unit Cost $107 Date Sept. 1 Sept. 12 Sept. 19 Sept. 26 110 Explanation Inventory Purchases Purchases Purchases Totals 111 Total Cost $ 1,070 5,060 5,883 2,352 $14,365 (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, e.g. 125.153 and final answers to o decimal places, e.g. 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, e.g. 125.153 and final answers to o decimal places, e.g. 125.) FIFO LIFO AVERAGE-COST Cost of goods solds