Date Explanation Units Unit Cost Total Cost Sept. 1 Inventory 13 $110 $1,430 Sept. 12 Purchases 45 113 5,085 Sept. 19 Purchases 55 114 6,270 Sept. 261 Purchases 22 115 2,530 Totals 135 $15.315 Additional data regarding the company's sales of snowboards are provided below. Assume that REI uses a perpetual inventory system Date Units Sept. 5 Sale 8 Sept. 16 Sale 47 Sept. 29 Sale 51 Totals 106 September 1 September 5 $ September 12 September 16 $ September 19 $ September 26 $ September 29 $ Calculate the weighted-average unit cost. (Round answers to 3 decimal places, e.g. 5.125.) September 1 $ September 5 $ September 12 $ September 16 "A $ September 19 $ September 26 September 29 $