Inventory data for Williams Door Company for the month of October are as follows: During the month of October, Williams sold 250 units @ \$210 each. Required: Compute the Cost of Goods Sold and Ending Inventory under 1. Average Cost 2. FIFO 3. LIFO 4. Prepare a Comparative Income Statement under the three methods. Operating Expenses are $4500. Calculate Gross Profit Percentage for each of the three methods. Round all numbers to the nearest dollar. Round percentages to two decimal places