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 290 units between January 16 and 23. Date Unita Unit cost Total Coat Beginning Inventory January 140 80 $11,200 Purchase January 15 330 January 24 250 90 110 29,700 27,500 Purchase Required: Calculate the cost of ending inventory and the cost of goods sold using the FIFO and LIFO methods LIFO Cost of Ending Inventory Cost of Goods Sold