Here is some information about Stokenchurch Inc.: Beta of common stock = 1.2 Treasury bill rate = 4% Market risk premium = 6.5% Yield to maturity on long-term debt = 7% Book value of equity = $340 million Market value of equity = $680 million Long-term debt outstanding = $680 million Corporate tax rate = 21% What is the company's WACC? (Do not round intermediate calculations. Enter your answer as a percent rounded to 2 decimal places.) WACC %