A $4\mathrm{.}80$ percent coupon municipal bond has $21$ years left to maturity and has a price quote of $102\mathrm{.}50.$ The bond can be called in eight years. The call premium is one year of coupon payments. $($Assume interest payments are semiannual and a par value of $$5,000.)$

Compute the bond's current yield. $($Do not round intermediate calculations. Round your answer to $2$ decimal places.$)$

Current yield

Compute the yield to maturity. $($Do not round intermediate calculations. Round your answer to $2$ decimal places.$)$

Yield to maturity

Compute the taxable equivalent yield $($for an investor in the $30$ percent marginal tax bracket$).($Do not round intermediate calculations. Round your answer to $2$ decimal places.$)$

Equivalent taxable yield