You are using S&P500 Index as your benchmark, which has earned an average return of 13% per year in the past 5 years and a S.D. of 10.5%. Your risky portfolio earned 15% average return during the same 5-year period with a S.D. of 16.2%. What is your M2 Measure if the rf rate is 3%? Make sure to include a + or - sign in your answer. I.E., -X.XX%