The following information applies to the questions displayed below. Data for Hermann Corporation are shown below: Per Unit $90 63 Percent of Sales 100% 70% Selling price Variable expenses Contribution margin $27 30% Fixed expenses are $78,000 per month and the company is selling 3,500 units per month. value: 10.00 points Required infa Required: 1-a. The marketing manager argues that a $8,300 increase in the monthly advertising budget would increase monthly sales by $16,500. Calculate the increase or decrease in net operating income et operating income