Kingbird sells a snowboard, EZside, that Is popular with snowboard enthusiasts. Below is Information relating to Kingbird's purchases of EZsilde snowboards during September. During the same month, 105 EZslide snowboards were sold. Kinijsbled uses a periodic inventory system Date Explanation Units Unit Cost Total Cost Sept. 1 Inventory 15 5102 $1.530 12 Purchase 45 104 4.680 1988 19 Purchase 50 106 5.300 26 Purchase -20 107 2140 Total 130 $13.650 Compute the ending inventory at September 30 using the FIFO, LIFO and average cost methods FIFO LIFO AVERAGE COST 2270 2170 Ending inventory at September 30 $