Coopes Inc. produces and sells a single item and information regarding that product appears below: Per Unit Percent of Sales Selling price $ 145 100.0 % Variable expenses 47 32.4 % Contribution margin $ 98 67.6 % Monthly fixed expenses are determined to be $480,000. Currently, the company is selling 6,000 units per month. The marketing department has determined that sales volume would increase by 500 units if the company were to make the following changes: Lower the selling price by $7 Increase the advertising budget by $28,000 per month What should be the overall effect on the company's monthly net operating income of this change