Patricia's Boards sells a snowboard, Xpert, that is popular with snowboard enthusiasts. Information relating to Patricia'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 15 105 1,575 Sept. 26 Purchases 50 108 5,400 Totals 135 $13,725 Additional data regarding Patricia's sales of Xpert snowboards are provided below. Assume that Patricia's uses a perpetual inventory system. Date Units Unit Price Total Revenue Sept. 5 Sale 10 $189 $1,890 Sept. 16 Sale 50 189 9,450 Sept. 29 Sale 60 214 12,840 Totals 120 $24,180