Assuming the bond is selling to yield $5\mathrm{.}25\%,$ compute the during based on a $25$ basis point rate shock:

Yield Coupon rate $5\%,25$ year maturity

$5\mathrm{.}00\%1,000$

$5\mathrm{.}25\%965\mathrm{.}416$

$5\mathrm{.}50\%932\mathrm{.}507$