View Policies Current Attempt in Progress Windsor sells a snowboard, EZslide, that is popular with snowboard enthusiasts. Below is information relating to Windsor's purchases of EZslide snowboards during September. During the same month, 105 EZslide snowboards were sold. Windsor uses a periodic inventory system. Date Explanation Units Unit Cost Total Cost Sept. 1 Inventory 15 $130 $1,950 12 Purchase 45 132 5,940 19 Purchase 50 134 6,700 26 Purchase 20 135 2,700 Total 130 $17,290 Compute the ending inventory at September 30 using the FIFO, LIFO and average-cost methods. Ending inventory at $ September 30 FIFO $ LIFO $ AVERAGE-COST Compute the cost of goods sold at September 30 using the FIFO, LIFO and average-cost methods. Cost of goods sold $ FIFO $ LIFO $ AVERAGE-COST