we make a fraction of the ratio:
\(\frac{11}{25}\)
and then we multiply it by 100% (we can always multiply by 100%, as this is equal to 1)
\(\frac{11}{25}*100%\)
(simplyfying: we know that 100=4*25, so we can cross the 25 out)
\(\frac{11}{1}*4%\)
and the result is:
44%