E7-5 Calculating Cost of Ending Inventory and Cost of Goods Sold under Period 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 300 units. Date Units Unit Cost Total Cost Beginning Inventory January 1 220 80 $17,600 27,900 January 24 270 110 29,700 Purchase Purchase January 15 310 90 Required: 1. Calculate the number and cost of goods available for sale. Number of Goods Available for Sale units Cost of Goods Available for Sale 2. Calculate the number of units in ending inventory. 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 UFO Weighted Average Cost Hints References eBook & Resources Hint #1