You purchased a zero$-$coupon bond one year ago for $$400.$ The market interest rate is now $8$ percent. If the bond had $10$ years to maturity when you originally purchased it$,$ what was your total return for the past year if the face value of the bond is $$1,000?$

$15\mathrm{.}4$ percent

$17\mathrm{.}4$ percent

$19\mathrm{.}4$ percent

$21\mathrm{.}4$ percent

$23\mathrm{.}4$ percent