Current Attempt in Progress Mary's Boards sells a snowboard, Xpert, that is popular with snowboard enthusiasts. Information relating to Mary's purchases of Xpert snowboards during September is shown below. During the same month, 120 Xpert snowboards were sold. Date Explanation Units Unit Cost Total Cost Sept. 1 Inventory 25 $90 $2,250 Sept. 12 Purchases 45 100 4,500 Sept. 19 Purchases 20 105 2,100 Sept. 26 Purchases 45 108 4,860 Totals 135 $13,710 Additional data regarding Mary's sales of Xpert snowboards are provided below. Assume that Mary's uses a perpetual inventory system. Date Units Unit Price Total Revenue Sept. 5 Sale 10 $180 $1,800 Sept. 16 Sale 50 180 9.000 Sept. 29 Sale 60 206 12,360 Totals 120 $23,160 (a1) Calculate moving average cost at Sept 1, 5, 12, 16, 19, 26 & 29. (Round answers to 2 decimal places, e.g. 1.25.) September 1 $ September 5 $ September 12 September 16 $ September 19 September 26 September 29 S