Data concerning Clyde Corporation's single product appear below: Selling price Variable expenses Contribution margirn Per Unit $230 115 $115 Percent of Sales 100% 50% The company is currently selling 9,000 units per month. Fixed expenses are $837,000 per month. The marketing manager believes that a $16,000 increase in the monthly advertising budget would result in a 150 unit decrease in monthly sales. What should be the overall effect on the company's monthly net operating income of this change? O decrease of $33,250 O decrease of $17250 O increase of $22.250 O increase of $1.250