hi can someone please help me figure this out?

Required information The following information applies to the questions displayed below) Data for Hermann Corporation are shown below: Selling price Variable expenses Contribution margin Fixed expenses are $74,000 per month and the company's selling 4,400 units per month, Per Unit $ 70 49 $ 21 Percent of Sales 1001 70 301 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 $4 per unit and increase unit sales by 25% 2-b. Should the higher quality components be used? Complete this question by entering your answers in the tabs below. Req 2A Reg 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 $4 per unit and increase unit sales by 25% Net operating income increases by