Whirly's contribution format income statement for the most recent month is shown below: Required: Consider each case independently. You need not prepare a new income statement. Instead, use the incremental approach where possible. 1. What would be the revised operating income per month if the sales volume increases by 100 units? 2. What would be the revised operating income per month if the sales volume decreases by 200 units? 3. What would be the revised operating income per month if the sales volume is 9.000 units? Total fixed expenses are $100,000 per month, and Drone On Limited is selling 1,000 drones per month. Required: 1. The marketing manager argues that a $5,000 increase in the monthly budget to prepare webinars would increase monthly sales by 50 drones. Should the webinar budget be increased? Yes No 2. Refer to the original data. Management is considering using higher-quality components that would increase the variable cost by $80 per unit. The marketing manager believes the higher-quality product would increq 1 e sales by 15% per month. Should the higher-quality components be used? Yes No