Teal Mountain sells a snowboard, EZslide, that is popular with snowboard enthusiasts. Below is information relating to Teal Mou purchases of EZslide snowboards during September. During the same month, 105 EZslide snowboards were sold. Teal Mountain periodic inventory system. Date Sept. 1 12 19 26 Explanation Inventory Purchase Purchase Purchase Total Units Unit Cost 15 $98 45 100 50 102 20 103 130 Total Cost $1,470 4,500 5,100 2,060 $13,130 Compute the ending inventory at September 30 using the FIFO, LIFO and average-cost methods. FIFO LIFO Ending inventory at September 30 Compute the cost of goods sold at September 30 using the FIFO, LIFO and average-cost methods. FIFO LIFO AVERAGE-COST Cost of goods sold