A $6\mathrm{.}35$ percent coupon bond with $27$ years left to maturity can be called in eight years. The call premium is one year of coupon payments. It is offered for sale at $$1,095$:$75.$ What is the yield to call of the bond? $($Assume interest payments are semiannual.$)$ Note: Round your answer to $2$ decimal places.

Yield to call