Bond J has a coupon rate of $7\mathrm{.}74$ percent and $7$ year to maturity. It makes semiannual payments, and have a YTM of $8\mathrm{.}43$ percent. If interest rates suddenly rise by $2$ percent, what is the percentage price change of this bond?

$($If the bond price decreases, remember to include the minus sign in your response! Enter your answer as a percentage, omit the $"\%"$ sign in your response, and enter your answer with two decimal places. For example, $-1\mathrm{.}214\%$ should be entered as $-1\mathrm{.}21.)$