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 Date January 1 Purchase January 15 Units 180 490 Unit Cost $ 70 Total Cost $ 12,600 80 Purchase January 24 280 100 39,200 28,000 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, (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 cost of ending inventory and cost of goods sold using the (a) FIFO, (b) LIFO, and (c) weighted aver methods. FIFO LIFO Weighted Average Cost Cost of Ending Cost of Goods Inventory Sold $ 56,000 $ 23,800 < Required 2 Required 3 > Required 1 Required 2 Required 3 Calculate the number of units in ending inventory. Ending Inventory units < Required 1 Required 3 >