A coupon bond of $8\mathrm{.}4$ percent with $18$ years left to maturity is priced to offer a $6\mathrm{.}70$ percent yield to maturity. You believe that in one year, the yield to maturity will be $7\mathrm{.}4$ percent. $($Assume interest payments are semiannual.$)$

What would be the total return of the bond in dollars?

What would be the total return of the bond in percentage?