72.41% is what you get when you turn the fraction 63/87 into a percentage. It’s the quick answer to “What is 63/87 as a percentage?” and it’s already rounded to two decimal places.
The fraction 63/87 can also be simplified before you think about percentages. When you divide both numbers by their greatest common divisor, 3, you get 21/29. That smaller fraction is easier to picture, but the percentage stays the same.
In everyday use, percentages are handy because they let you compare parts of a whole easily. Seeing 72.41% tells you that 63 is a little more than three‑quarters of 87, which is useful in school projects or quick estimates.
If you need to share this number in a report or a presentation, just write 72.41% and most people will understand the size of the part you’re describing without any extra math.