Teal Mountain Inc. sells a snowboard, WhiteOut, that is popular with snowboard enthusiasts. Presented below is information relating to Teal Mountain Inc's purchases of WhiteOut snowboards during September. During the same month, 120 WhiteOut snowboards were sold at $170 each. Teal Mountain Inc. uses a periodic inventory system Date Explanation Units Unit Cost Total Cost Sept. 1 Inventory 25 $100 $2,500 Sept. 12 Purchases 41 106 4,346 Sept. 19 Purchases 24 110 2,640 Sept. 26 Purchases Totals 112 5,040 135 $14,526 (a) Your answer is incorrect. Compute the ending inventory at September 30 and cost of goods sold using the FIFO and LIFO methods. Ending inventory Cost of goods sold FIFO 1586 LIFO