Company A is financed by 27% of debt and the rest of the company is financed by common equity. The company's before-tax cost of debt is 3.5%, and its cost of equity is 9.6%. If the marginal tax rate is 30%, the company's weighted average cost of capital (WACC) is ____. (Note: Round your answer to three decimal places. For example, if your answer is 8.7%, you should write 0.087 in the answer box. DO NOT write your answers as percentages as you will be marked wrong.)