Anderson Corporation has provided its contribution format income statement for July, 2017 $558,000 Variable expenses 306.900 Contribution margin 251,100 Fixed expenses Net operating income $41300 209,800 Required: 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. c) Using the information from a) and b) above, what is the dollar amount of the increase in net operating income