Data for Hermann Corporation are shown below: Per Unit Percent of Sales Selling price $ 65 100% Variable expenses 39 60% Contribution margin $ 26 40% Fixed expenses are $73,000 per month and the company is selling 4,300 units per month. 2. value: 0.50 points Required information Required: 1-a. The marketing manager argues that a $9,700 increase in the monthly advertising budget would increase monthly sales by $23,500. Calculate the increase or decrease in net operating income. 1-b. Should the advertising budget be increased? Yes No Hints References eBook & Resources Hint #1 Check my work 3. value: 0.50 points Required information 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.