Assume that Artemis Co., a manufacturer of microchips, has a beta of -0.25. This company had $1.4 billion of debt outstanding and 365 million shares trading at $7.85 each. The firm has a cash balance of $750 million, a marginal tax rate of 17%, and a cost of debt of 4.70%. The risk-free rate and the market premium are 6% and 8% respectively. Assume that the firm pays out a special cash dividend of S620 million. What is the WACC before the dividend is paid? What is the WACC after the special dividend? Assume that the cost of debt remains unchanged after the dividend is paid. Round your final answer to the 4th decimal point.