\[\boxed{\mathbf{3.23}}\]
\[0,3 \rightarrow 30\%\]
\[0,85 \rightarrow 85\%\ \]
\[\frac{1}{2} = 0,5 \rightarrow 50\%.\]
\[\frac{4}{5} = 0,8 \rightarrow 80\%.\]
\[\frac{3}{4} = 0,75 \rightarrow 75\%.\]
\[\frac{7}{20} = \frac{35}{100} = 0,35 \rightarrow 35\%.\]
\[1 \rightarrow 100\%.\]
\[4 \rightarrow 400\%.\]
\[4\frac{9}{25} = 4\frac{36}{100} \rightarrow 436\%\]
\[16\frac{11}{40} = 16\ \frac{275}{1000} =\]
\[= 16,275 \rightarrow 1627,5\%\]