E7-15 (Supplement 7A) Calculating Cost of Ending Inventory and Cost of Goods Sold under Perpetual FIFO and LIFO [LO 7-S1] 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 330 units between January 16 and 23 otal Cost $98$27,000 Beginning Inventory Purchase Purchase anuary 1 3anuary 1s January 24 300 400 300 189 120 40,800 36,000 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 Cost of Goods Sold