Mirion Tech, Inc., has rE of 12%, an rD of 6%, at a debt-equity ratio of 0.50. Mirion plans to raise enough preferred stock to retire half of their outstanding common stock, which currently has a market value of $7 million. If the preferred stock has an expected rate of return of 10%, what is the new WACC? (Assume a 21% marginal corporate tax rate and that rD remains at 6%.)