Enterprise, Inc., bonds have a $9\mathrm{.}5\%$ coupon rate. The interest is paid semiannually and the bonds mature in eleven years. Their par value is $$1,000.$ If the market interest rate is $7\mathrm{.}4\%,$ what is the value $($price$)$ of the bond? $1,156\mathrm{.}18$

Suppose market interest rates rise to $9\mathrm{.}5\%.$ What is the value of the bond?