Kimberly's Boards sells a snowboard, Xpert, that is popular with snowboard enthusiasts. Information relating to Kimberly's purchases of Xpert snowboards during Septembehis shown below. During the same month, 124 Xpert snowboards were sold. Kimberly's uses a periodic inventory system. (b) For both FIFO and LIFO, calculate the sum of ending inventory and cost of goods sold