please answer both questions.... information to answer the question below

The Atlantic Division of Start Production Company has the opportunity to invest in a project that will provide an 18% return on investment. If the manager of the Atlantic Division invests in the project, will the return on investment of the Division increase or decrease? Why? If the manager of The Atlantic Division invests in the project, will the residual income of the Division increase or decrease? Why? The Atlantic Division of Start Production Company reported the following results for 2020: Sales $5,500,000 Variable Costs $2,200,000 Controllable Fixed Costs $2,540,000 Average Operating Assets $4,000,000 The minimum required rate of return of Start Production Company is 16%