You purchased a zero$-$coupon bond one year ago for $$281\mathrm{.}83.$ The market interest rate is now $9$ percent. Assume semiannual compounding. If the bond had $15$ years to maturity when you originally purchased it$,$ what was your total return for the past year?

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

Answer is complete but not entirely correct.

$\backslash$table$[[$Total return for the past year,$2\mathrm{.}91,\%$