A $9-$year bond paying coupons annually has a yield of $8\mathrm{.}5\%$ and a duration of $8\mathrm{.}489$ years $($Macaulay$).$ Assume the market yield changes by $90$ basis points. Required: What is the percentage change in the bond$$s price? Note: Assume modified duration and a positive increase in yield change. Do not round intermediate calculations. Negative value should be indicated by a minus sign. Round your answer to $2$ decimal places.