Data for Hermann Corporation are shown below: Selling price Variable expenses Contribution margin Percent Per Unit of Sales $ 60 39 $ 21 100% 65 35% Fixed expenses are $72,000 per month and the company is selling 4,200 units per month. 2-a. Refer to the data above. 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%. (See below for a hint if you are having trouble getting to the right answer.) 2-b. Should the higher-quality components be used? Complete this question by entering your answers in the tabs below. Req 2A Req 2B 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 by < Req 2A Req 2B >