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 330 units Date Units Unit Cost Total Cost Beginning Pur chase Pur chase January 1 January 15 January 24 300 400 300 $ 90 100 120 $27, 000 40, 000 36, 000 Inventory 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 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>