Data for Hermann Corporation are shown below: Percent of Per Unit Salas Selling price $ 65 100% Variable expenses 39 60 Contribution margin $ 25 40% Fixed expenses are $73,000 per month and the company is selling 4,300 units per month. Exercise 5-5 (Algal Part 2 2-a. Refer to the original data. How much will net operating income increase (decrease) per month if the company uses higher-qualityI components that increase the variable expense by $5 per unit and increase unit sales by 25%. 2-b. Should the higher-quality components be used