84/99 as a percentage is 84.85%. This number tells you how much of a whole the fraction represents when you look at it in everyday terms. It’s a quick way to see that the fraction is a little less than five‑tenths of a whole.
The fraction 84/99 can also be thought of as 84 parts out of 99 equal parts. When you compare it to a full set of 100 parts, it’s almost the same as 85 out of 100, which is why the percentage is close to 85%.
Because the percentage is rounded to two decimal places, you get a tidy 84.85% that’s easy to read and use in reports, charts, or simple calculations. It’s a handy way to communicate the size of the fraction without writing long numbers.