Singer Inc. is a retailer operating in Edmonton, Alberta. Singer uses the perpetual inventory method. All sales returns from customers result in the goods being returned to inventory. (Assume that the inventory is not damaged.) Assume that there are no credit transactions; all amounts are settled in cash. You are provided with the following information for Singer Inc. for the month of January 2012.

Instructions(a) For each of the following cost flow assumptions, calculate(i) Cost of goods sold,(ii) Ending inventory, and(iii) Gross profit.(1) LIFO. (Assume sales returns had a cost of $20 and purchase returns had a cost of $24.)(2) FIFO. (Assume sales returns had a cost of $20 and purchase returns had a cost of $24.)(3) Moving-average. (Round cost per unit to three decimal places.)(b) Compare results for the three cost flowassumptions.

Unit Cost or Selling Price Date Description Ending inventory Purchase Quantity $20 Dec. 31 160 Jan. 2 100 22 Sale Jan. 6 180 40 Sale return Jan. 9 10 40 Purchase Jan. 9 75 24 Purchase return Jan. 10 15 24 Jan. 10 Sale 50 45 Purchase Jan. 23 100 25 Sale 48 Jan. 30 130