Quick Step Golf Products is considering whether to upgrade its equipment. Managers are considering two options. Equipment manufactured by Preston Inc. costs $960,000 and will last five years and have no residual value. The Preston equipment will generate annual operating income of $168,000. Equipment manufactured by Riverside Limited costs $1,150,000 and will remain useful for six years. It promises annual operating income of $235,750, and its expected residual value is $100,000. 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.)