Assume that you have been able to compute the Macaulay Duration of a bond with some maturity and some coupon rate and assume that it is equal to $8\mathrm{.}69($half years$).$ Further, assume that you have also been able to compute the bond's convexity and it is equal to $731\mathrm{.}68($half years$).$ Assume that the initial yield is $8\%$ per annum and that the coupons are paid every six months. Using the Macaulay duration and the convexity shown above, approximate the percentage price change for a $200$ bps change in the yield, in either direction. What do you notice?