59/87 as a percentage is 67.82%. This number tells you how much of a whole the fraction represents when you look at it in terms of 100 parts.
The fraction 59/87 is a bit more than half, but less than three‑quarters. When you write it as a decimal, it comes out to about 0.6782, which matches the percentage after you multiply by 100.
Knowing the percentage makes it easier to compare this value with other numbers, like test scores or discounts. So whenever you see 59 out of 87, you can think of it as roughly 68% of the total.