A bond offers a coupon rate of $9\%,$ paid annually, and has a maturity of $13$ years. The current market yield is $10\%.$ Face value is $$1,000.$ If market conditions remain unchanged, what should be the Capital Gains Yield of the bond?

Enter your answer as a percentage, rounded to two decimals, and without the percentage sign $(\text{'}\%\text{'}).$ For example, if your answer is $0\mathrm{.}123456,$ then it is equivalent to $12\mathrm{.}35\%,$ so you should enter $12\mathrm{.}35$ as the answer. Use the minus sign $(\text{'}-\text{'})$ if the yield is $-$ negative.