Required information Exercise 6-5 (Algo) 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: Fixed expenses are $84,000 per month and the company is selling 2,600 units per month. Exercise 6-5 (Algo) Part 1 Required: 1-a. How much will net operating income increase (decrease) per month if the monthly advertising budget increases by $8,900, the monthly sales volume increases by 100 units, and the total monthly sales increase by $12,000? 1-b. Should the advertising budget be increased? Exercise 6-5 (Algo) 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: Fixed expenses are $84,000 per month and the company is selling 2,600 units per month. Exercise 6-5 (Algo) 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 omponents that increase the variable expense by $5 per unit and increase unit sales by 20%. 2-b. Should the higher-quality components be used