Vienna Inc. currently has a capital structure that consists of 100% equity. The risk-free rate is 3%, and the market risk premium is 8%. The company's current cost of equity is 9%, and its tax rate is 30%. If Vienna Inc. were to change its capital structure to 30% debt and 70% equity, what would be the company's estimated cost of equity? Vienna Inc. currently has a capital structure that consists of 100% equity. The risk-free rate is 3%, and the market risk premium is 8%. The company's current cost of equity is 9%, and its tax rate is 30%. If Vienna Inc. were to change its capital structure to 30% debt and 70% equity, what would be the company's estimated cost of equity