When you change 6/99 to a percent you get 6.06%. This is the rounded value you’ll see on most calculators and charts.
The fraction 6/99 can be simplified by dividing both the numerator and denominator by 3, giving 2/33. Even though it’s a small part of a whole, it still represents a real, measurable amount.
In everyday life you might see this percentage used to describe a tiny share of a group, like 6.06% of a class voting for a particular option. The rounding to two decimal places keeps the number easy to read while staying accurate enough for most purposes.