please do Instruction part a) only

*E6-15 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 Purchase Price Unit Sales Price Oct. 1 Beginning inventory $295 10 Purchase 30 300 12 Sale $450 13 Purchase 35 305 25 Sale (45) 460 27 Purchase (42) 310 Instructions Calculate the cost of goods sold and the ending inventory using FIFO and weighted average, assuming Xpert uses a perpetual inventory system. (Round the weighted average cost per unit to two decimal places.) hlar