Larkspur Company sells $8\%$ bonds having a maturity value of $$2,290,000$ for $$2,116,380.$ The bonds are dated January $1,2020,$ and mature January $1,2025.$ Interest is payable annually on January $1.($a$)$Determine the effective$-$interest rate. $($Round answer to $0$ decimal places, e$.$g$.18\%.)$The effective interest rate

I just want to know how to get the effective rate