The Maybe Pay Life Insurance Company is trying to sell you an investment policy that will pay you and your heirs $$25,000$ per year forever. Suppose a sales associate told you the policy costs $$470,000.$ At what interest rate would this be a fair deal? $($Do not round intermediate calculations and enter your answer as a percent rounded to $2$ decimal places, e$.$g$.,32\mathrm{.}16.)$

Interest rate $$