You read in The Wall Street Journal that 30-day T-bills are currently yielding 4.7. Your brother-in-law, a broker at safe and Sound Securities, has given you the following estimates of current interest rate premium Inflation premium 3.50% Liquidity premium 0.2% Maturity risk premium - 2.15% Dewalt risk premium 2.45 On the basis of these data, what is the real risk free rate of return? Round your answer to two decimal places