3/84 as a percentage is 3.57%. This small number shows just how tiny a part of a whole 84 can be when you take only 3 of those parts.
The fraction 3/84 can also be simplified to 1/28, which still represents the same tiny slice of a larger set. Seeing it as a percentage makes it easier to compare with other values you might encounter in everyday life, like discounts or test scores.
In practical terms, 3.57% might be the portion of a class that gets a perfect score, or the share of a budget allocated to a minor expense. Knowing the percentage quickly tells you the scale without having to think about the original denominator.