Ivanhoe Company sells a snowboard, EZslide, that is popular with snowboard enthusiasts. Below is information relating to Ivanhoe Company's purchases of EZslide snowboards during September. During the same month, 105 EZslide snowboards were sold. Ivanhoe Company uses a periodic inventory system. Units Unit Cost Total Cost Explanation Date Sept. 1 $110 $1,320 Inventory 12 Sept. 12 Purchases 113 45 5,085 Sept 19 Purchases 114 60 6,840 Sept. 26 Purchases 23 115 2,645 $15,890 Totals 140 (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 AVERAGE-COST LIFO 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. 125.153 and final answers to 0 decimal places, e.g. 125.) FIFO LIFO AVERAGE-COST Cost of goods sold