0 Required information [The following information applies to the questions displayed below) Data for Hermann Corporation are shown below: Selling price Variable expenses Contribution margin Per Unit $ 130 78 $ 52 Percent of Sales 100% 60 400 Fixed expenses are $86,000 per month and the company is selling 2,800 units per month Required: 1-a. How much will net operating income increase (decrease) per month if the monthly advertising budget increases by $9,100 and monthly sales increase by $23,400? 1-b. Should the advertising budget be increased? Complete this question by entering your answers in the tabs below. Reg 1A Reg 1B