Sarasota Corp. sells a snowboard, EZslide, that is popular with snowboard enthusiasts. Below is information relating to Sarasota Corp.'s purchases of EZslide snowboards during September. During the same month, 109 EZslide snowboards were sold. Sarasota Corp. uses a periodic inventory system. Explanation Units Unit Cost Total Cost Date Sept. Sept. 12 Purchases Sept. 19 Purchases Sept. 26 Purchases $ 1,092 4,230 5,130 2,112 $12,564 1 Inventory 45 Totals 133 (a) Compute the ending inventory at September 30 using the FIFO, LIFO and average-cost methods. (Round average cost per unit to 3 declmal places, e.g. 125.153 and final answers to 0 decimal places, e.g. 125.) FIFO LIFO AVERAGE-COST The ending in 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, eg. 125.153 and final answers to 0 decimal places, e.g. 125.) FIFO LIFO AVERAGE-COST Cost of goods sold