Exercise 5-5 Changes in Variable Costs, Fixed Costs, Selling Price, and Volume (L05-4) [The following information applies to the questions displayed below) Data for Hermann Corporation are shown below Selling price Variable expenses Contribution margin Per Unit 5 80 44 $36 Percent of Sales 100% 55 455 Fixed expenses are $76,000 per month and the company is selling 2,500 units per month Exercise 5-5 Part 1 Required: 1-a. How much will net operating income increase (decrease) per month if the monthly advertising budget increases by $8100 and monthly sales increase by $14,400? 1-b. Should the advertising budget be increased? Complete this question by entering your answers in the tabs below. Reg 1A Reg 15 How much will net operating income increase (decrease) per month if the monthly advertising budoet increases by $8.100 and monthly sales increase by $14,4007 (Round any unit calculations up to the nearest whole unit.) Not operating income decreases Dy Req 18>