Required information [The following information applies to the questions displayed below.] Laker Company reported the following January purchases and sales data for its only product. Date Activities Jan. 1 Beginning inventory Jan. 10 Sales Jan. 20 Purchase Jan. 25 Sales Jan. 30 Purchase Totals 150 units @ $12.50 320 units @ $12.00 = 680 units Units Acquired at Cost 210 units @ $13.50 = $2,835 = 1,875 Units sold at Retail 160 units @ $22.50 180 units @ $22.50 3,840 $8,550 340 units The Company uses a perpetual inventory system. For specific identification, ending inventory consists of 340 units, where 320 are from the January 30 purchase, 5 are from the January 20 purchase, and 15 are from beginning inventory. Required: 1. Complete the table to determine the cost assigned to ending inventory and cost of goods sold using specific identification. 2. Determine the cost assigned to ending inventory and to cost of goods sold using weighted average. 3. Determine the cost assigned to ending inventory and to cost of goods sold using FIFO. 4. Determine the cost assigned to ending inventory and to cost of goods sold using LIFO.