Martinez Corp. sells a snowboard, WhiteOut, that is popular with snowboard enthusiasts. Presented below is information relating to Martinez Corp's purchases of WhiteOut snowboards during September. During the same month, 120 WhiteOut snowboards were sold at $170 each. Martinez Corp. uses a periodic inventory system. Date Explanation Units Unit Cost Total Cost Sept. 1 Inventory 27 $100 $2.700 Sept. 12 Purchases 43 106 4,558 Sept. 19 Purchases 26 110 2,860 Sept 26 Purchases 47 112 5.264 Totals 143 $15,382 (a) Compute the ending inventory at September 30 and cost of goods sold using the FIFO and LIFO methods. FIFO LIFO The ending inventory $ $ Cost of boods sold $ $