Confusion between moles and molarity units
$\ce{M}$ is a shortcut for $\frac{\ce{mol}}{\ce{l}}$. $\ce{mol}\%$ on the other side is defined as $\frac{n}{n_{\ce{tot}}}$. In order to convert between the two you need to know the density $\rho$ and the molar mass $M$ (don't confuse this with the unit) of your solution/mixture. You can then do
$$
c_{\ce{mol}\%} = \frac{c_\ce{M} \cdot V_{\ce{mix}}}{V_{\ce{mix}} \cdot \rho \cdot M^{-1}} = \frac{c_\ce{M}}{\rho \cdot M^{-1}}
$$
$c_{\ce{mol}\%}$ is the concentration in $\ce{mol}\%$ and $c_M$ the one in $\ce{M}$.