61/84 as a percentage is 72.62%. This number tells you how much of a whole 61 parts out of 84 represent when you look at it on a scale of 100.
The fraction 61/84 is a proper fraction, meaning the top number is smaller than the bottom number. It can be simplified only a little, but its decimal form is about 0.726, which lines up nicely with the percentage you see.
When you think of 72.62%, imagine a pie chart where roughly three‑quarters of the circle is shaded. It’s a handy way to compare the fraction to other values that are already expressed in percent.