Requirement 1. Compute cost of goods sold and gross profit using the FIFO inventory costing method. period. (Enter the oldest inventory layers first.) Requirements 1. Compute cost of goods sold and gross profit using the FIFO inventory costing method. 2. Compute cost of goods sold and gross profit using the LIFO inventory costing method. 3. Compute cost of goods sold and gross profit using the weighted-average inventory costing method. (Round weighted-average cost per unit to the nearest cent and all other amounts to the nearest dollar.) 4. Which method results in the largest gross profit, and why? More info