If sales are $840,000, variable costs are 45% of sales, and operating income is $260,000, the contribution margin ratio 13 45% 55% O 60% 80% Fortuer Co. has an operating leverage of 3. Sales are expected to increase by 12% next year Operating income is expected to increase by 14%. expected to increase by 36% expected to increase by 19% unaffected by the increase in sales. Which of the following is an example of a mixed cost? rental costs of $8,000 per month plus $0.40 per machine hour of use $85,000 salary of a factory supervisor electricity costs of $3 per kilowatt-hour $4,800 straight-line depreciation on factory equipment over 5 years Dempsey Co. reports the following data: Sales $615,900 Variable costs 432,700 Contribution margin $183,200 Fixed costs 69,800 Operating income $113,400 Determine Dempsey Co.'s operating leverage. Round your answer to one decimal place. 2.1 O 24 1.8 1.6