Find the WACC of William Tell Computers. The total book value of the firm's equity is $10 million; book value per share is $20. The stock sells for a price of $30 per share, and the cost of equity is 15%. The firm's bonds have a par value of $5 million and sell at a price of 110% of par. The yield to maturity on the bonds is 9% and the firm's tax rate is 30%. (Round your answer to 2 decimal places.) WACC %