The risk-free rate is 2% and the market risk premium is 6%. NULU Corporation used to operate its business with a debt-to-assets ratio of 33% and had an equity Beta estimated at 1, with a debt beta of zero and a cost of debt capital of 2%. The firm will move to a new capital structure featuring a debt-to-assets ratio of 50%, with a debt beta of zero and cost of debt capital of 2%. Assuming the tax rate is 40% estimate: the old cost of equity capital, old WACC, new cost of equity capital, and the new WACC.