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

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,Years,Interest Rate,Future Value$],[$$ $320,3,\%,$$ $384],[440,17,\%,1,411],[47,000,18,\%,234,893],[46,261,20,\%,438,339]]$