Dusit is financed 28% by debt yielding 8.1%. Investors require a return of 15.1% on Dusits equity.

What is the companys weighted-average cost of capital if the corporate tax rate is 21%?

What would be the companys cost of capital if it were exempted from corporate tax?

Note: For all the requirements, do not round intermediate calculations. Enter your answers as a percent rounded to 2 decimal places.