10/82 as a percentage is 12.20%. This is the rounded value you get when you turn the fraction into a percent with two decimal places.
The fraction 10/82 can be simplified a bit, but even in its original form it already shows a small part of a whole. It means you have ten pieces out of eighty‑two equal parts.
When you look at the percentage, it tells you that those ten pieces make up about twelve percent of the whole. This quick view helps you compare it easily with other numbers or percentages you might see.