vBond J is a $3\mathrm{.}6\%$ coupon bond. Bond K is a $9\mathrm{.}6\%$ coupon bond. Both bonds have $15$ years to maturity, make semiannual payments and have a YTM of $6\mathrm{.}6\%.($Do not round intermediate calculations. Negative answers should be indicated by a minus sign. Round the final answers to $2$ decimal places.$)$

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

Percentage change in price of Bond J

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Percentage change in price of Bond K

$\%$

What if rates suddenly fall by $2\%$ instead?

Percentage change in price of Bond J

$\%$

Percentage change in price of Bond K

$\%$