Data for Hermann Corporation are shown below: Per Unit S 80 Percent of Sales 100 % Selling price variable expense Contribution margin s 28 35 Fixed expenses are $76,000 per month and the company is selling 4,600 units per month. 2-a. Refer to the original data. Management is considering using higher-quality components that would increase the variable expense by $5 per unit. The marketing manager believes that the higher-quality product would increase sales by 25% per month. Calculate the change in total contribution margin. 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. Management is considering using higher-quality components that would increase the variable expense by $5 per unit. The marketing manager believes that the higher-quality product would increase sales by 25% per month. Calculate the change in total contribution margin