Im Confused!

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. Units Acquired at Cost 295 units @ $13.80 $ 4,071 Units Sold at Retail 480 units @ $18.80 9,024 Date Activities Jan. 1 Beginning inventory Jan. 10 Sales Mar. 14 Purchase Mar. 15 Sales July 30 Purchase Oct. 5 Sales Oct. 26 Purchase Totals 240 units @ $43.80 420 units @ $43.80 495 units @ $23.80 11,781 465 units @ $43.80 = 195 units @ $28.80 1,465 units 5,616 $30,492 1,125 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. Determine the costs assigned to ending inventory and to cost of goods sold using FIFO. Perpetual FIFO: Goods Purchased Cost of Goods Sold # of Cost per # of units Cost per Cost of Goods units unit sold unit Sold Date Inventory Balance Cost per # of units Inventory unit Balance $ 13.80 = $ 4,071.00 January 1 295 @ January 10 240 @ $ 13.80 = $ 3,312.00 55 @ $ 13.80 = $ 759.00 March 14 480 @ $ 18.80 55 @ 480 @ $13.80 = $ 759.00 $ 18,80 = 9,024.00 $ 9,783.00 March 15 $ = 55 @ 365 @ $ 13.80 $ 18.80 $ 759.00 6,862.00 $ 7,621.00 0 @ 115 @ $ 13.80 = $ 18.80 = = $ 2,162.00 $ 2,162.00 July 30 495 @ $23.80 0 @ 115 @ 495 @ $ 13.80 $ 18.80 = $ 23.80 = 2,162.00 11,781.00 $ 13,943.00 October 5 $ @ @ $ 13.80 $ 18.80 $ 23.80 = = 0.00 0.00 @ @ @ $ 13.80 $ 18.80 $ 23.80 0.00 October 26 Totals $ 10,933.00 Determine the costs assigned to ending inventory and to cost of goods sold using LIFO. Perpetual LIFO: Goods Purchased Cost of Goods Sold # of Cost per # of units Cost per Cost of Goods units unit sold unit Sold Date January 1 January 10 Inventory Balance Cost per # of units Inventory unit Balance 295 @ $ 13.80 = $ 4,071.00 March 14 March 15 July 30 July 30 October 5 October 26 Totals A 0.00 Compute the gross margin for FIFO method and LIFO method. FIFO: LIFO: Sales revenue Less: Cost of goods sold Gross margin