Hello, I need help with the following question for Managerial Accounting.

Whirly Corporation's contribution format income statement for the most recent month is shown below: 272, 167 , 2e 105 , see so, soe Sales (8, 800 units) Variable expenses Contribution margin Fixed expenses Net operating income Required: (Consider each case independently): Total 55,10 Per IJnit $ 31.e 19. ee $ 12.e . What would be the revised net operating income per month if the sales volume increases by 40 units? . What would be the revised net operating income per month if the sales volume decreases by 40 units? What would be the revised net operating income per month if the sales volume is 7,800 units? 2 3 Revised net operating income Revised net operating income Revised net operating income