Help Save & Exit Submit Check my work mode: This shows what is correct or incorrect for the work you have completed so far. It does not indicate completion. 2 Return to question Part 1 of 2 Required information The following information applies to the questions displayed below) Data for Hermann Corporation are shown below: 4 points Percent of Sales 1000 Per Unit $120 78 Selling price Variable expenses Contribution margin 35 Fixed expenses are $84,000 per month and the company is selling 2.600 units per month Required: 1-a. How much wil net operating income increase (decrease) per month if the monthly advertising budget increases by $8.900 and monthly sales increase by $18,000? 1-b. Should the advertising budget be increased