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 Per Unit $ 125 80 $ 45 Percent of Sales 100% 64 36% Fixed expenses are $85,000 per month and the company is selling 2,700 units per month. Exercise 5-5 (Algo) Part 1 Required: 1-a. How much will net operating income increase (decrease) per month if the monthly advertising budget increases by $9,000, the monthly sales volume increases by 100 units, and the total monthly sales increase by $12,500? 1-b. Should the advertising budget be increased? Complete this question by entering your answers in the tabs below