! Required information (The following information applies to the questions displayed below.] Hemming Co. reported the following current-year purchases and sales for its only product. Date Activities Jan. 1 Beginning inventory Jan. 10 Sales Mar. 14 Purchase Mar. 15 Sales July30 Purchase Oct. 5 Sales Oct.26 Purchase Totals Units Acquired at Cost Units Sold at Retail 270 units @ $12.80 $ 3,456 220 units @ $42.80 400 units @ $17.80 = 7,120 340 units @ $42.80 470 units @ $22.80 = 10,716 440 units @ $42.80 170 units @ $27.80 = 4,726 1,310 units $26,018 1,000 units Required: Hemming uses a perpetual inventory system. 1. Determine the costs assigned to ending inventory and to cost of goods sold using FIFO. 2. Determine the costs assigned to ending inventory and to cost of goods sold using LIFO. 3. Compute the gross margin for FIFO method and LIFO method