*E6.15 (LO 2,7) AP Xpert Snowboards sells an ultra-lightweight snowboard that is considered to be one of the best on the market. Information follows for Xpert's purchases and sales of the ultra-lightweight snowboard in October: Date Transaction Units Unit Sales Price 25 Unit Purchase Price $295 300 30 (42) $450 Oct. 1 10 12 13 25 27 Beginning inventory Purchase Sale Purchase Sale Purchase 305 460 (45) 20 310 I Instructions a. Calculate the cost of goods sold and the ending inventory using FIFO and weighted average, as- suming Xpert uses a perpetual inventory system. (Round the weighted average cost per unit to two decimal places.)