value 0.57 points E7-5 Calculating Cost of Ending Inventory and Cost of Goods Sold under Periodic FIFO, Weighted Average Cost [LO 7-3] Oahu Kiki tracks the number of units purchased and sold throughout each accounting period but applies its inventory costing method at the end of each month, as if it uses a periodic inventory system. Assume Oahu Kiki's records show the following for the month of January. Sales totaled 290 units. SSDate Units Unit Cost Total Cost Beginning Inventory January 1 140 80 $1100 Purchase January 15 330 90 January 24 250 110 29,700 27,500 Purchase 2. Calculate the number of units in ending inventory Ending Inventory 430 units 3. Calculate the cost of ending inventory and cost of goods sold using the (a) FIFO, (b) LIFO, and (c) weighted average cost methods. Cost of Ending Inventory Cost of Goods Sold FIFO LIFO Weighted Average Cost