Excel Online Structured Activityt Hamada equation Satuational Soitware Co. (SSC) is trying to establich its optimal capital structure. Its current capital structure consists of 25% debt and 75%6 equity: however, the CEO believes that the firm should use more debt. The nsk-free rate, ris, is 6%; the market risk premium, RPr, is 5%; and the firm's tax rate is 40%, Carrently. SSC's cost of equity is 15%, which. us determined by the CAPM. The data has been collected in the Microsolt Exrel Online file below. Open the spreadsheet and perform the required analysis to answer the question below. Open spreadsheet What would be 55 c's estimated cost of equity if it changed its capital structure to soos debt and 50% equityl Round your answer to two decimal places. Do not round intermediste stegs