Ons Duke Energy has been paying dividends steadily for 20 years. During that time, dividends have grown at a compound annual rate of 9%. If Duke Energy's current stock price is $73 and the firm plans to pay a dividend of $5.50 next year, what is the required return on Duke's common stock? The required return on Duke's common stock is \%. (Round to two decimal places.) Enter your answer in the answer box, 8:41