(The following information applies to the questions displayed belowj Data for Hermann Corporation are shown below: Percent o Sales 100 70 308 Per Unit S110 Selling price Variable expenses Contribution margin Fixed expenses are $82,000 per month and the company is selling 3,500 units per month. Exercise 5-5 Part 2 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 20%. 2-b. Should the higher-quality components be used