Kuzio Corporation produces and sells a single product. Data concerning that product appear below: Selling price Variable expenses Contribution margin Per Unit $140 56 $ 84 Percent of Sales 100% 40% 60% The company is currently selling 6,000 units per month. Fixed expenses are $202,000 per month. The marketing manager believes that a $7,200 increase in the monthly advertising budget would result in a 140 unit increase in monthly sales. What should be the overall effect on the company's monthly net operating income of this change? Multiple Choice 0 increase of $4,560 0 decrease of $7,200 0 decrease of $4,560 0 increase of $11,760