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 260 units. Beginning Inventory Purchase Purchase Required: Date January 1 January 15 Units 220 480 Unit Cost $ 80 Total Cost $ 17,600 January 24 200 90 110 43,200 22,000 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, (b) LIFO, and (c) weighted average cost methods. Answer is not complete. Complete this question by entering your answers in the tabs below. Required 1 Required 2 Required 3 Calculate the number of units in ending inventory. Ending Inventory 460 units < Required 1 Required 3 >