Exercise 6-5 (Part Level Submission) Swifty's Boards sells a snowboard, Xpert, that is popular with snowboard enthusiasts. Information relating to Swifty's purchases of Xpert snowboards during September is shown below. During the same month, 127 Xpert snowboards were sold. Swifty's uses a periodic inventory system. Explanation Units Unit Cost Total Cost 2,673 4,935 2,289 6,095 $15,992 Date Sept. 1 Sept. 12 Sept. 19 Inventory Purchases Purchases 27 47 21 53 148 $99 105 109 115 Sept. 26 Purchases Totals (a)