E7-5 Calculating Cost of Ending Inventory and Cost of Goods Sold under Periodic FIFO, LIFO, and 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 300 units. Beginning Inventory Purchase Purchase Date January 1 January 15 January 24 Units Unit Cost Total Cost 240 $ 75 $18,000 320 85 27,200 240 105 25,200 Required: 1. Calculate the number and cost of goods available for sale. 2. Calculate the number of units in ending inventory 3. Calculate the cost of ending inventory and cost of goods sold using the (a) FIFO. (6) LIFO, and (c) weighted average. cost methods Complete this question by entering your answers in the tabs below. Required 1 Required 2 Required 3 Calculate the cost of ending inventory and cost of goods sold using the (a) FIFO, (b) LIFO, and (c) weighted average cost methods