Oahu Kiki tracks the number of units purchased and sold throughout each accounting period but applies its inventory costing method perpetually at the time of each sale, as if it uses perpetual inventory system. Assume Oahu Kiki's records show the following for the month of January. The company sold 320 units between January 16 and 23. Beginning Inventory Purchase Date January 1 January 15 Units 180 490 Unit Cost Total Cost $ 70 80 Purchase January 24 280 100 $ 12,600 39,200 28,000 Required: Calculate the cost of ending inventory and the cost of goods sold using the FIFO and LIFO methods. FIFO LIFO Cost of Ending Inventory $ 48,400 Cost of Goods Sold