Hemming Co. reported the following current-year purchases and sales for its only product. Date Activities Units Acquired at Cost Units sold at Retail Jan. 1 Beginning inventory 200 units @ $10 = $ 2,000 Jan. 10 Sales 150 units @ $40 Mar. 14 Purchase 350 units @ $15 5,250 Mar.15 Sales 300 units @ $40 July30 Purchase 450 units @ $20 9,000 Oct. 5 Sales 430 units @ $40 Oct.26 Purchase 100 units @ $25 2,500 Totals 1,100 units $18,750 880 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. Complete this question by entering your answers in the tabs below. Required 1 Required 2 Required 3 Compute the gross margin for FIFO method and LIFO method. FIFO: LIFO: Sales revenue Less: Cost of goods sold Gross margin