Selling price $ Variable expenses Contribution $ margin Per Unit 238 53 185 The EV41866 company is currently selling 7,800 units per month. Fixed expenses are $882,000 per month. The marketing manager would like to cut the selling price by $27 and increase advertising spending by $57000 per month. The marketing manager predicts that these changes would increase monthly sales quantity by 22%. What would be the overall effect on the EV41866 company's monthly net operating income of this change? Note: A POSITIVE number indicates an INCREASE in net operating income, and a NEGATIVE number indicates DECREASE in net operating income) Multiple Choice -15,768 dollars -31200 dolines Multiple Choice -15,768 dollars O -31,200 dollars 3,528 dollars 13,800 dollars