When you turn the fraction 9⁄33 into a percent, you get 27.27%. This is the rounded value you would see on most calculators or charts.
The fraction 9⁄33 can be reduced to 3⁄11, which still represents the same part of a whole. Whether you write it as 9⁄33, 3⁄11, or 27.27%, the proportion stays constant.
In everyday terms, 27.27% means a little more than one quarter of something. If you had 100 items, about 27 of them would correspond to the part described by 9⁄33.