Bond J has a coupon rate of 4.2 percent. Bond S has a coupon rate of 14.2 percent. Both bonds have ten years to maturity, make semiannual payments, a par value of $1,000, and have a YTM of 9.4 percent.

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

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