Solve for the unknown interest rate in each of the following:

Note: Do not round intermediate calculations and enter your answers as a percent rounded to $2$ decimal places, e$.$g$.,32\mathrm{.}16.$

$\backslash$table$[[$Present Value,$\backslash$table$[[$Years$],[5]],$Interest Rate,Future Value$],[$$$,810,\%,$$$,1,571],[,1,000,6,\%,,1,908],[,24,500,17,\%,,151,332],[,79,800,20,\%,,331,815]]$