Sherper's Boards sells a snowboard, Xpert, that is popular with snowboard enthusiasts. Information relating to Sherper’s purchases of Xpert snowboards during September is shown below. During the same month, 121 Xpert snowboards were sold. Sherper’s uses a periodic inventory system.

Date Explanation Units Unit Cost Total Cost Sepuml Inventory 23 $ 97 SS) Desi Sept. 12 Purchases 45 102 4,590 Sept. 19 Purchases 20 104 2,080 Sept. 26 Purchases £o 105 4,620 Totals iB2 $13,521 Instructions

(a) Compute the ending inventory at September 30 and cost of goods sold using the FIFO and LIFO methods. Prove the amount allocated to cost of goods sold under each method.

(b) For both FIFO and LIFO, calculate the sum of ending inventory and cost of goods sold.

What do you notice about the answers you found for each method?