Kimberly's Boards sells a snowboard, Xpert, that is popular with snowboard enthusiasts. Information relating to Kimberly's purchases

of Xpert snowboards during September is shown below. During the same month, $124$ Xpert snowboards were sold. Kimberly'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..