A founder raises a $$4M$ round on a $$10M$ Pre$-$Money Valuation. Assuming the founder is the only other shareholder, what is the founder's ownership percentage following the raise? $(10$ Points$)$

$75\mathrm{.}01\%$

$28\mathrm{.}57\%$

$26\mathrm{.}33\%$

$71\mathrm{.}43\%$