The following information applies to the questions displayed belowJ Data for Hermann Corporation are shown below: Percent Per Unit $ 115 of Sales 60% 40% Selling price Variable expenses Contribution margin $ 46 Fixed expenses are $83,000 per month and the company is selling 2,500 units per month. value: 10.00 points Required: 1-a. The marketing manager argues that a $8,800 increase in the monthly advertising budget would increase monthly sales by $19,000. Calculate the increase or decrease in net operating income. Net operating income by 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 15% per month. Calculate the change in total contribution margin. Total contribution margin by