Problem $7-27$ Yield to Maturity $($LG$7-6)$

A $7\mathrm{.}15$ percent coupon bond with $18$ years left to maturity is offered for sale at $$1,055\mathrm{.}30.$ What yield to maturity is the bond offering? $($Assume interest payments are semiannual.$)($Round your answer to $2$ decimal places.$)$

Yield to maturity

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