153/721 = ≈21.22%
Rounded to 2 decimal places.
A value like 153/721, or about 21.22%, could describe the share of students in a school who ride the bus, customers who choose a certain product, or survey participants who give a particular answer. It is useful whenever a group contains a little more than one-fifth of the total.
To picture 21.22% quickly, think of 20% as one out of every five people, then add a small bit more. On a group of 100, it would be about 21 people, so the fraction is clearly below one-quarter, which is 25%.
One common mistake is treating 21.22% as if it means 21.22 people in every group. Percentages describe a proportion, so the actual number of people depends on the total group size and may need to be rounded.