[The following information applies to the questions displayed below.] Data for Hermann Corporation are shown below: Selling price Variable expenses Contribution margin Percent Per Unit of Sales $ 90 63 100% 70 $ 27 30% Fixed expenses are $30,000 per month and the company is selling 2,000 units per month. Required: 1-a. How much will net operating income increase (decrease) per month if the monthly advertising budget increases by $5,000, the monthly sales volume increases by 100 units, and the total monthly sales increase by $9,000? 1-b. Should the advertising budget be increased? Complete this question by entering your answers in the tabs below. Req 1A Req 18 How much will net operating income increase (decrease) per month if the monthly advertising budget increases by $5,000, the monthly sales volume increases by 100 units, and the total monthly sales increase by $9,000? Net operating income by Required information [The following information applies to the questions displayed below.] Data for Hermann Corporation are shown below: Selling price Per Unit $ 90 Percent of Sales 100% Variable expenses 63 70 Contribution margin $ 27 30% Fixed expenses are $30,000 per month and the company is selling 2,000 units per month. 2-a. Refer to the original data. How much will net operating income increase (decrease) per month if the company uses higher-quality components that increase the variable expense by $2 per unit and increase unit sales by 10%. 2-b. Should the higher-quality components be used? Complete this question by entering your answers in the tabs below. Req 2A Req 28 Refer to the original data. How much will net operating income increase (decrease) per month if the company uses higher- quality components that increase the variable expense by $2 per unit and increase unit sales by 10%. Net operating income by