Problem $5-4$ Calculating Interest Rates $[$LO$3]$

Solve for the unknown interest rate in each of the following: $($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$],[3]],$Interest Rate,Future Value$],[$$$,200,\%,$$$,232],[,320,17,\%,,847],[,35,000,18,\%,,143,410],[,34,261,20,\%,,261,665]]$