Please answer This 2 part question

Exercise 2-1 (Algo) The Effect of Changes in Sales Volume on Net Operating Income [LO2-1] Whirly Corporation's contribution format income statement for the most recent month is shown below: Required: (Consider each case independently): 1. What would be the revised net operating income per month if the sales volume increases by 90 units? 2. What would be the revised net operating income per month if the sales volume decreases by 90 units? 3. What would be the revised net operating income per month if the sales volume is 7,100 units? Data for Hermann Corporation are shown below: Fixed expenses are $78,000 per month and the company is selling 3,500 units per month. Exercise 2-5 (Algo) Part 1 Required: 1-a. How much will net operating income increase (decrease) per month if the monthly advertising budget increases by $8,300, the monthly sales volume increases by 100 units, and the total monthly sales increase by $9,000 ? 1-b. Should the advertising budget be increased? Complete this question by entering your answers in the tabs below. How much will net operating income increase (decrease) per month if the monthly advertising budget incre the monthly sales volume increases by 100 units, and the total monthly sales increase by $9,000 ? Note: Do not round intermediate calculations