Kuzio Corporation produces and sells a single product. Data concerning that product appear below:

Per UnitPercent of SalesSelling price$ 150100%Variable expenses9060%Contribution margin$ 6040%

The company is currently selling 6,500 units per month. Fixed expenses are $193,000 per month. The marketing manager believes that a $5,400 increase in the monthly advertising budget would result in a 120 unit increase in monthly sales. What should be the overall effect on the company's monthly net operating income of this change?