Novak Corp, sells a snowboard, Ezslide, that is popular with snowboard enthusiasts. Below is information relating to Novak Corps purchases of EZslide snowboards during September. During the same month, 107 EZslide snowboards were sold. Novak Coro uses a periodic inventory system Date Explanation Units Unit Cost Total Cost Sept. 1 Inventory 13 $117 51.521 Sept. 12 Purchases 46 120 5.520 Sept. 19 Purchases 60 121 7,260 Sept. 26 Purchases 21 122 2,562 Totals 140 $16,863 (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, eg. 125.153 and final answers to decimal places, eg 125) FIFO LIFO AVERAGE-COST 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, es 125.153 and final answers to decimal places, eg 125) FIFO LIFO AVERAGE-COST Cost of goods sold $ $ e Textbook and Media