Exxon Corp wants to evaluate a new oil and gas investment. Currently, Exxon has a debt to equity ratio of 1:3. Exxons cost of equity is 16.1%, cost of debt is 6.2%, and tax rate is 30%. For the new project Exxon wants to finance the project with 50% debt and 50% equity (debt to equity ratio of 1). Assume the cost of debt will be the same under the new capital structure. What discount rate (WACC) should Exxon use to for this new project? (Hint: First, calculate what the new cost of equity) (Answer in %. Ex for .6789 put 67.89%)