The pure rate of interest is $2\mathrm{.}5$ percent and the inflation premium is $5$ percent. If you require a risk premium of $3\mathrm{.}5$ percent, what is the real rate? Use exact formulation. $8\mathrm{.}75\%6\mathrm{.}09\%11\mathrm{.}00\%6\mathrm{.}00\%11\mathrm{.}39\%$