Bond J has a coupon rate of $3$ percent. Bond K has a coupon rate of $9$ percent. Both bonds have $18$ years to maturity, make

semiannual payments, and have a YTM of $7$ percent.

If interest rates suddenly rise by $2$ percent, what is the percentage price change of these bonds?

Note: A negative answer should be indicated by a minus sign. Do not round intermediate calculations and enter your answers as a

percent rounded to $2$ decimal places, e$.$g$.,32\mathrm{.}16.$

What if rates suddenly fall by $2$ percent instead?

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