please do it correctly will upvote

Helen's Boards sells a snowboard, Xpert, that is popular with snowboard enthusiasts. Information relating to Helen's purchases of Xpert snowboards during September is shown below. During the same month, 125 Xpert snowboards were sold. Helen's uses a periodic inventory system. (a) Compute the ending inventory at September 30 and cost of goods sold using the FIFO and LIFO methods. eTextbook and Media Attempts: 0 of 5 used (b). For both FIFO and LIFO, calculate the sum of ending inventory and cost of goods sold