A bond has a par value of $$1,000,$ a time to maturity of $20$ years, and a coupon rate of $7\mathrm{.}10\%$ with interest paid annually. If the current market price is $$710,$ what will be the approximate capital gain of this bond over the next year if its yield to maturity remains unchanged? $($Do not round intermediate calculations. Round your answer to $2$ decimal places.$)$