need help

Sunrise Golf Products is considering whether to upgrade its equipment. Managers are considering two options. Equipment manufactured by McKnight Inc, costs $1,100,000 and will last six years and have no residual value. The McKnight equipment will generate annual operating income of $170,500. Equipment manufactured by Riverside Limited costs $1,125,000 and will remain useful for seven years. It promises annual operating income of $236,250, and its expected residual value is $115,000. Which equipment offers the higher ARR? First, enter the formula, then calculate the ARR (Accounting Rate of Return) for both pieces of equipment. (Enter the answer as a percent rounded to the nearest tenth percent.) Accounting = rate of return