Arnold Products is considering whether to upgrade its equipment. Managers are considering two options. Equipment manufactured by Richland Motors costs $ 1,000,000 and will last five years and have no residual value. The Richland Motors equipment will generate annual operating income of $ 160,000. Equipment manufactured by Littleton Manufacturing costs $ 1,350,000 and will remain useful for six years. It promises annual operating income of $ 249,750, and its expected residual value is $ 110,000. Which equipment offers the higher ARR?