Required information Exercise 5-5 (Algo) Changes in Variable Costs, Fixed Costs, Selling Price, and Volume [LO5-4) [The following information applies to the questions displayed below.) Data for Hermann Corporation are shown below. Selling price Variable expenses Contribution margin Fixed expenses are $81.000 per month and the company is selling 3,800 units per month Per Unit 5 105 63 $42 Percent of Sales 100% se 401 Exercise 5-5 (Algo) Part 1 Required: 1-a How much will net operating income increase (decrease) per month of the monthly advertising budget increases by $8,600. the monthly sales volume increases by 100 units, and the total monthly sales increase by $10,500? 1-6. Should the advertising budget be increased