Calculate the required return of Prolific Corporation from the information given below: Total equity (common) 1,200 million Net income 200 million 124 million 40 million 47.70 10% 12% Dividends paid Common shares outstanding Price per share Risk-free rate Expected premium on the market Historical beta for the firm's stock 18.4% 18.8% 18.2% 18.6% 0.55