\(\begin{array}{l}
\dfrac{7}{{25}} = \dfrac{{7.4}}{{25.4}} = \dfrac{{28}}{{100}} = 0,28 = 28\% \\
\dfrac{{19}}{4} = \dfrac{{19.25}}{{4.25}} = \dfrac{{475}}{{100}} = 4,75 = 475\% \\
\dfrac{{26}}{{65}} = \dfrac{2}{5} = \dfrac{{2.20}}{{5.20}} = \dfrac{{40}}{{100}} = 0,4 = 40\%
\end{array}\)