Laker Company reported the following January purchases and sales data for its only product. For specific identification, ending inventory consists of 280 units from the January 30 purchase, 5 units from the January 20 purchase, and 15 units from beginning inventory. Date January 1 Activities Beginning inventory 190 units @ January 10 Sales January 20 January 25 January 30 Purchase Sales Purchase Totals 110 units @ Units Acquired at Cost $ 7.00 = $ 6.00 = Units sold at Retail $ 1,330 150 units @ $ 16.00 660 130 units @ $ 16.00 280 units @ 580 units $ 5.50 = 1,540 $ 3,530 280 units Exercise 5-3 (Algo) Perpetual: Inventory costing methods LO P1 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 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.