P-F:6-29A Accounting for inventory using the perpetual inventory system- FIFO, LIFO, and weighted average, and comparing FIFO, LIFO, and weighted average Steel Mill began August with 50 units of iron inventory that cost $35 each. During August, the company completed the following inventory transactions: Units Unit Cost Unit Sales Price Aug. 3 Sale 45 $85 8 Purchase 90 $ 54 21 Sale 85 88 30 Purchase 15 58 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