complete Return to question Required information Exercise 6-5 Changes in Variable Costs, Fixed Costs, Selling Price, and Volume (LO6-4) [The following information applies to the questions displayed below.] Data for Hermann Corporation are shown below: Per Unit $140 Percent of Sales 100% 65 Selling price Variable expenses Contribution margin 91 $ 49 358 Fixed expenses are $88,000 per month and the company is selling 3,000 units per month. Exercise 6-5 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 $6 per unit and increase unit sales by 20%. 2-b. Should the higher-quality components be used? Answer is not compl