Data for Hermann Corporation are shown below: Fixed expenses are $82,000 per month and the company is selling 3,500 units per month. Exercise 5.5 (Algo) Part 1 Pequired: 1.a. How much will net operating income increase (decrease) per month if the monthly advenising budget increases by $8,700, the monthly sales volume increases by 100 units, and the total monthly sales increose by $11,000 ? 1.b. Should the advertising budget be increased