Omega Corporation has $10\mathrm{.}3$ million shares outstanding, now trading at $$58$ per share. The firm has estimated the expected rate of return to shareholders at about $15\%.$ It has also issued long$-$term bonds at an interest rate of $10\%$ and has a debt value of $$215$ million. It pays tax at a marginal rate of $21\%.$

What is Omega$$s after$-$tax WACC?

What would WACC be if Omega had not to pay taxes and the expected rate of return to shareholders were unchanged?

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