Mcquage Corporation has provided its contribution format income statement for July. Sales Variable expenses Contribution margin Fixed expenses Net operating income Required: $ 558,000 306,900 251,100 209,800 $ 41,300 a. Compute the degree of operating leverage to two decimal places. b. Using the degree of operating leverage, estimate the percentage change in net operating income that should result from a 19% increase in sales volume. Essay Toolbar navigation. BIUS !!! A K3