Oakwood Plowing Company purchased two new plows for the upcoming winter. In 200 days, Oakwood must make a single payment of $22,140 to pay for the plows. As of today, Oakwood has $21,600. Assume the Oakwood puts the money in a bank today, what rate of interest will it need to pay off the plows in 200 days? Note: Use 360 days a year. Do not round intermediate calculations. Round your answer to the nearest tenth percent