TB Problem Qu. 6-223 (Algo) Shelhorse Corporation produces and... 100 40 605 $ 120 Shelhorse Corporation produces and sells a single product. Data concerning that product appear below: Percent of Per Unit Sales Selling price $ 200 Variable expenses 80 Contribution margin Fixed expenses are $350,000 per month. The company is currently selling 4,500 units per month Required: The marketing manager believes that a $19.000 increase in the monthly advertising budget would result in a 190 unit increase in monthly sales. What should be the overall effect on the company's monthly net operating income of this change? Change in net operating income