Laker Company reported the following January purchases and sales data for its only product. For specific identification, ending inventory consists of 270 units from the January 30 purchase, 5 units from the January 20 purchase, and 15 units from beginning inventory. Assume the perpetual inventory system is used. 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 woighted average. 3. Determine the cost assigned to ending inventory and to cost of goods sold using FFO. 4. Determine the cost assigned to ending inventory and to cost of goods sold using LIFO. Complete this question by entering your answers in the tabs below. Complete the table to determine the cost assigned to ending inventory and cost of goods sold using specific identification