Data for Hermann Corporation are shown below: Selling price Variable expenses Percent of Per Unit $ 115 Sales 100% 69 60 $ 46 40% Contribution margin Fixed expenses are $83,000 per month and the company is selling 2,500 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 $5 per unit and increase unit sales by 15%. 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 $5 per unit and increase unit sales by 15%. Net operating income by 2-b. Should the higher-quality components be used? Complete this question by entering your answers in the tabs below. Req 2A Req 2B Should the higher-quality components be used?