4. Compute gross profit earned by the company for each of the four costing methods. (Round your average cost per unit to 2 decimal places.) FIFO $ Sales Less: Cost of goods sold Gross profit 91,350 $ 56.970 34,380 LIFO Weighted Specific Average Identification 91,350 91,350 $ 91,350 57,335 56,821) 29,270 34,015 $ 34,529 $ 62,080 $ 5. The company's manager earns a bonus based on a percent of gross profit. Which method of inventory costing produces the highest bonus for the manager? Weighted Average FIFO LIFO Specific Identification