Required information Exercise 5-5 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: Fixed expenses are $83,000 per month and the company is selling 2,500 units per month. Exercise 55 Part 1 Required: 1=0. How much will net operating income increase (decrease) permonth if the monthly odvertising budget increases by $8,800 ond monthly sales increase by $17,250 ? 1.b. Should the advertising budget be increased