\[\boxed{\mathbf{2.}\mathbf{324}}\]
\[\textbf{а)}\ 0,34 = 34\%\]
\[\textbf{б)}\ 0,6 = 60\%\]
\[\textbf{в)}\ 0,09 = 9\%\]
\[\textbf{г)}\ \frac{4}{5} = \frac{8}{10} = 0,8 = 80\%\]
\[\textbf{д)}\ \frac{9}{20} = \frac{45}{100} = 0,45 = 45\%\]
\[\textbf{е)}\ \frac{11}{50} = \frac{22}{100} = 0,22 = 22\%\]