Problem:
Copernicus Inc. has determined that its target capital structure will be 60% debt, 10% preferred stock, and 30% common stock. As the financial manager, the CFO has informed you that the company's before tax cost of debt is 10%, preferred stock is 14%, and common stock is 16%. In addition, the company's marginal tax rate is 40%. Based on the information provided, calculate the weighted average cost of capital (WACC).
Please provide detailed explanation, and show all steps.