The self$-$employment tax rate is made up of the Social Security portion, which is $.$ and the Medicare portion, which is

$6\mathrm{.}2\%,7\mathrm{.}65\%$

$1\mathrm{.}45\%,6\mathrm{.}2\%$

$6\mathrm{.}2\%,1\mathrm{.}45\%$

$1\mathrm{.}45\%,7\mathrm{.}65\%$