Ringstaff Corporation produces and sells a single product. Data concerning that product appear below:
- Per Unit Percent of Sales
- Selling price : $158 100%
- Variable expenses : 39.5 25%
- Contribution margin : $118.5 75%
The company is currently selling 6,200 units per month. Fixed expenses are $603,000 per month. The marketing manager believes that a $31,980 increase in the monthly advertising budget would result in a 280 unit increase in monthly sales. What should be the overall effect on the company monthly net operating income of this change ?