Exercise 6-15 (Part Level Submission) Martinez Corp. sells a snowboard, EZslide, that is popular with snowboard enthusiasts. Below is information relating to Martinez Corp's purchases of Eslide snowboards during September. During the same month, 116 slide snowboards were sold. Date Sept. 1 Sept. 12 Sept. 19 Sept. 26 Explanation Inventory Purchases Purchases Purchases Totals Units 15 49 58 23 145 Unit Cost $106 109 110 111 Total Cost $1,590 5,341 6,380 2,553 $15,854 Additional data regarding the company's sales of EZslide snowboards are provided below. Assume that Martinez Corp. uses a perpetual inventory system. Date Sale Sept. 5 Sept. 16 Units 8 54 54 Sale Sept. 29 Sale 116 Totals (b) Compute ending inventory at September 30 using FIFO, LIFO, and moving-average. (Round answer FIFO LIFO AVERAGE-COST The ending inventory $