Iron Man began August with 75 units of iron inventory that cost $20 each. During August, the company completed the following inventory transactions: (Click the icon to view the transactions.) i Data Table Units Unit Cost Unit Sales Price $ 59 Aug. 3 Sale 8 Purchase 21 Sale $ 28 70 60 75 30 Purchase Print Done Requirem Requirements 1. Prepare a perpetual inventory record for the merchandise inventory using the FIFO inventory costing method. 2. Prepare a perpetual inventory record for the merchandise inventory using the LIFO inventory costing method. 3. Prepare a perpetual inventory record for the merchandise inventory using the weighted average inventory costing method. 4. Determine the company's cost of goods sold for August using FIFO, LIFO, and weighted average inventory costing methods. 5. Compute gross profit for August using FIFO, LIFO, and weighted-average inventory costing methods. 6. If the business wanted to maximize gross profit, which method would it select