s Question 7 Kingbird Boards sells a snowboard, Xpert, that is popular with snowboard enthusiasts. Information relating to Kingbird's purchases of Xpert snowboards during September is shown below. During the same month, 286 Xpert snowboards were sold. Kingbird's uses a periodic inventory system. Date Unit Cost Total Cost Units 54 106 HK$1,011 Explanation Inventory Purchases Purchases Purchases Totals Sept. 1 Sept. 12 Sept. 19 Sept. 26 1,033 47 1,084 1,104 HK$ 54,594 109,498 50,948 114,816 HK$329,856 104 311 (a) Compute the ending inventory at September 30 and cost of goods sold using the FIFO and average-cost methods. (Round per unit cost to 3 decimal places, e.g. 15.125 and final answers to O decimal places, e.g. 125.) FIFO Average-Cost The ending inventory at September 30 HK$ HKS Cost of goods sold HK$ HK$ (b) For both FIFO and average-cost, calculate the sum of ending inventory and cost of goods sold. (Round per unit cost to 3 decimal places, e.g. 15.125 and final answers to 0 decimal places, e.g. 125.) FIFO Average-Cost The sum of ending inventory and cost of goods sold HK$ HK$