Orion Iron Corp, tracks the number of units purchased and sold throughout each year but appliles its inventory costing method at the end of the year as if it uses a periodic inventory system, Assume its accounting records provided the following informabon at the end of the annual eccounting period, Dectimber 31 . Required: 1. Calculate the number and cost of goods avallable for sale. 2. Calculate the number of units in ending inventory. Answer is complete and correct. 3. Compute the cost of ending inventory and cost of goods sold under ( b ) FIFO and (b) weighted avorage cost. (Round Weightod average cost per unit to two decimal places and final answers to the nearest dollar amount) Answer is complete but not entirely correct. 4. Prepare an income statement that shows amounts for the FiFO method in one column and for the weighted average method in anothier column. Include the following line rems in the income statement Sales, Cost of Goods Sold, Gross Profit, Operating Expenses and income from Operations. (Round Weighted average cost per unit to two decimal places and final answers to the nasrest dollat amount.)