Required information [The following information applies to the questions displayed below] Data for Hermann Corporation are shown below: Fixed expenses are $73,000 per month and the company is selling 4,300 units per month. -a. Refer to the original data. How much will net operating income increase (decrease) per month if the company uses higheruality components that increase the variable expense by $5 per unit and increase unit sales by 25%. b. Should the higher-quality components be used