A Bond has a price $P$ determined by interest rates $r$ and time to maturity $t$ by the following:

$P=e^{-rt}$

You know that the interest rate is $9\mathrm{.}28\%,$ but unfortunately you forgot the exact maturity. You think it is $9\mathrm{.}36$ years, but you are not sure. However, you feel confident that the $t$ is not off by more than $+-0\mathrm{.}23.$

What is your absolute percent error in the bond price? $($Round to two decimal places$)$