Date Exercise 6-04 Pronghorn Corp sells a snowboard, Ele that is popular with snowboard enthusiasts. Below is Information relating to Pronghorn Corp's purchases of EZslide snowboards during September. During the same month, 100 EZslide snowboards were sold. Pronghorn Corp uses a periodic inventory system. Explanation Units Unit Cost Total Cost Sept. 1 Inventory 13 $115 $ 1,495 Sept. 12 Purchases 49 118 5,782 Sept. 19 Purchases 54 119 6,426 Sept. 26 Purchases 24 120 2,880 Totals 140 $16,583 (a) Compute the ending inventory at September 30 using the FIFO, LIFO and average-cost methods. (Round average cost per unit to 3 decima! places, e.g. 125.153 and final answers to o decimal places, c.9. 125.) FIFO LIFO AVER OST The ending Inventory at September 30$ (b) Compute the cost of goods sold at September 30 using the FIFO, LIFO and average-cost methods. (Round average cost per unit to 3 decimal places, e.g. 125.153 and final answers to o decimal places, e.g. 125.) FIFO LIFO AVERAGE-COST Cost of goods sold Presented below is information for Zales Company for the month of January 2010 Cost of goods $222,000 Rent expense $36,000 sold Sales discounts 8,000 13,000 Freight-out 7,000 Insurance 12,000 expense Salary expense 58,000 Sales returns and allowances Sales 390,000 Instructions (a) Prepare a multiple-step income statement. (b) Calculate the profit margin ratio and the gross profit rate