What annual interest rate $($APR$)$ would you need to earn if you wanted a $$400$ per month contribution to grow to $$32,668$ in five years?

Selected Answer:

$[$None Given$]$

Answers:

$6\mathrm{.}47$ percent

$7\mathrm{.}76$ percent

$12\mathrm{.}00$ percent

$14\mathrm{.}70$ percent