$\frac{2}{5}=\frac{40}{100}=40\%$

$0,15=15\%$

$\frac{3}{4}=\frac{75}{100}=75\%$

$2=200\%$  

$1,1=110\%$

$\frac{14}{40}=\frac{7}{20}=\frac{35}{100}=35\%$

$\frac{3}{25}=\frac{12}{100}=12\%$