Mercury Enterprise are trying to find their discount rate. The company has 100,000 bonds $960 each with 7% yield to maturity. The company's 500,000 common stocks are traded at $87 per share. The beta of the stocks is 0.9. The effective corporate tax rate is 34%. The market risk premium is given as 8.4%, and the current Treasury bill rate is 4.4%. Please, assist Mercury Enterprise to find the discount rate. Please, input just a number with two decimals. For example, for 8.2% input "8.20"