IThe following information applies to the questions displayed below. Data for Hermann Corporation are shown below: Percent Per Unit of Sales Selling price Variable expenses $ 90 63 100% 70% Contribution margin $ 27 30% Fixed expenses are $30,000 per month and the company is selling 2,000 units per month. value: 0.55 points Required 1-a. The marketing manager argues that a $5,000 increase in the monthly advertising budget would increase monthly sales by $9,000. Calculate the increase or decrease in net operating income Net operating income by 1-b. Should the advertising budget be increased? O Yes O No Hints Refe rences eBook & Resources Hint #1 Check my work