read in The Wall Street Journal that $30-$day bills are currently Your brotherin$-$law, a broker at Safe and Sound Securities, has given you the following estimates of current interest rate premiums: Inflation premium $=2\mathrm{.}50\backslash \%$ Liquidity premium $=1\mathrm{.}2\backslash \%$ Maturity risk premium $=2\mathrm{.}00\backslash \%$ Default risk premium $=2\mathrm{.}00\backslash \%$ On the basis of these data, what is the real risk$-$free rate of return? Round your answer to two decimal places