Data for Hermann Corporation are shown below: Data for Hermann Corporation are shown below: Fixed expenses are $76,000 per month and the company is selling 2.500 units per month. Required: The marketing manager argues that a $8,100 increase in the monthly advertising budget would increase monthly sales by $15,500. Calculate the increase or decrease in net operating income. Exercise 5-5 Part 1 Required: The marketing manager argues that a $8,100 increase in the monthly advertising budget would increase monthly sales by $15,500. Calculate the increase or decrease in net operating income. Should the advertising budget be increased? Yes No Exercise 5-5 Part 2 Refer to the original data. Management is considering using higher-quality components that would increase the variable expense by S4 per unit. The marketing manager believes that the higher-quality product would increase sales by 20% per month. Calculate the change in total contribution margin. Should the higher-quality components be used? Yes No