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 280 units. Beginning Inventory Purchase Purchase Required: Date January 1 Units 220 Unit Cost Total Cost $ 90 $ 19,800 January 15 480 100 January 24 200 120 48,000 24,000 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. 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 Cost of Goods Available for Sale units Required 1 Required 2 > 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 units < Required 1 Required 3 > 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 methods. FIFO LIFO Cost of Ending Inventory Cost of Goods Sold Weighted Average Cost < Required 2 Required 3 >