Check n 3 Data for Hermann Corporation are shown below: Selling price Variable expenses Contribution margin Part 1 of 2 Percent of Sales 1008 55 45 Per Unit $ 80 44 $ 36 1 points Fixed expenses are $76,000 per month and the company is selling 2,500 units per month. eBook Hint Print Required: 1-a. How much will net operating income increase (decrease) per month if the monthly advertising budget increases by $8,100 and monthly sales increase by $14,400? 1-b. Should the advertising budget be increased? References Complete this question by entering your answers in the tabs below. Req 1A Req 1B How much will net operating income increase (decrease) per month if the monthly advertising budget increases by $8,100 and monthly sales increase by $14,400? (Round any unit calculations up to the nearest whole unit.) Net operating income by Reg 1A Reg 1B >