Due to mismanagement, Pakistan Steel Mills is currently over levered with a debt to capital ratio of 80% and a pre-tax cost of debt of 8%. Management of Pakistan Steel Mills is considering a restructuring that will reduce the company's debt to capital ratio to 40% and its pre-tax cost of debt to 6%. Current:
Debt/(Debt+Equity) = 80%
Cost of Debt (pre-tax) = 8%
Cost of Equity = 24.10%

Recapitalised:
Debt/(Debt+Equity) = 40%
Cost of Debt (pre-tax) = 6%
Cost of Equity =?

If the marginal tax rate is 25%, the risk-free rate is 2.5%, and the equity risk premium is 6%, estimate the cost of capital after the restructuring.