When you turn the fraction 10/85 into a percent you get 11.76%. This tells you that out of every 100 parts, roughly 12 of them belong to the original 10 out of 85. It’s a quick way to see the size of the fraction in everyday terms.
The fraction 10/85 can be reduced to 2/17, but the percentage stays the same. Whether you write it as 10/85, 2/17, or 11.76%, each form shows the same proportion of a whole.
In real life, 11.76% might represent the share of a small group in a larger population, like 10 students out of 85 who chose a particular option. Knowing the percentage makes it easy to compare that group with others, even if the total numbers are different.