You just paid $$397$ for a security that claims it will pay you $$1,446$ in $6$ years. What is your annual rate of return? SET YOUR CALCULATOR TO $4$ DECIMAL PLACES AND ROUND TO $2$ DECIMAL PLACES AT THE END. DO NOT ENTER THE $\%$ SIGN. IF YOUR ANSWER IS $7\mathrm{.}7021\%,$ FOR EXAMPLE, ENTER $7\mathrm{.}70.$