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 320 units. Beginning Inventory Purchase Purchase Required: Date January 1 January 15 January 24 Units 180 490 280 Unit Cost $ 70 Total Cost $ 12,600 80 100 39,200 28,000 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 and cost of goods available for sale. Number of Goods Available for Sale units Cost of Goods Available for Sale < Required 1 Required 2 >