The market value of Rumbers Inc is currently 75.0% in equity and 25.0% in debt. Its current WACC is 15.5%, marginal corporate tax rate is 42.0%, the yield to maturity on its outstanding bonds is 8.2% and is expected to remain constant, the risk-free rate is 3.0%, and the expected return on the market portfolio is 9.5%. Rumbers is strategically positioning itself for an acquisition and has the capacity to increase its level of debt to equity ratio to 50.0% over 50.0% if needed.

If the firm changed its capital structure as proposed, what would be the new equity cost of capital? % (Give answer as % to 2 decimal places)