Kingbird sells a snowboardEZslide that is popular with wowboarderthusiasts. Below is information relating to incidspur of EZslide snowboards during September. During the same month, 105 Zalide showboards were sold ongides a periodic Inventory system Date Explanation Units Unit Cost Total Cast Sept. 1 Inventory 15 $80 $ 1.200 12 Purchase 45 82 3.690 19 Purchase SO 84 4.200 26 Purchase 20 85 1.700 Total 130 $10,790 Compute the ending inventory at September 30 using the FIFO, UFO and average-cost methods FIFO LIFO AVERAGE-COST 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 $ und