Novak Corp. sells a snowboard, EZslide, that is popular with snowboard enthusiasts. Below is information relating to Novak Corp's purchases of EZslide snowboards during September. During the same month, 97 EZ slide snowboards were sold. Novak Corp. uses a periodic inventory system. Date Explanation Units Unit Cost Sept. 1 inventory $97 Sept. 12 Purchases Total Cost $1.067 4,400 4747 2,244 $12458 Sept. 19 Purchases Sept. 26 Purchases Totals (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 2713 Cost of goods sold $ 2749 2667