23. Alyssa Corp produces and sells a single product. Data concerning that product appear below: Selling price Variable expenses Contribution margin The company is currently selling 6,500 units per month. Fixed expenses are $180,000 per month. The marketing manager believes that a $8,000 increase in the monthly advertising budget would result in a 300 unit increase in monthly sales. What should be the overall effect on the company's monthly net operating income of this change