74/91 as a percentage is 81.32%. This is the rounded value you get when you look at the fraction in terms of a whole.
The fraction 74/91 shows that 74 parts out of a total of 91 are being considered. When you think of it as a part of a whole, it is a little more than four‑fifths, which matches the 81.32% you see.
Knowing the percentage makes it easier to compare this fraction with other numbers, like test scores or discounts. It tells you quickly that the amount is a little over 80 % of the total.
