Contribution Margin Ratio, Variable Cost Ratio, Break-Even Sales Revenue The controller of Ashton Company prepared the following projected income statement: Sales Total variable cost Contribution margin Total fixed cost Operating income Required: 1. Calculate the contribution margin ratio. Note: Enter as a percent, rounded to the nearest whole number. % $88,000 23,760 $64,240 43,800 $20,440 2. Calculate the variable cost ratio. Note: Enter as a percent, rounded to the nearest whole number. % 3. Calculate the break-even sales revenue for Ashton. Note: Round your answer to the nearest dollar. $ 4. How could Ashton increase projected operating income without increasing the total sales revenue?