87/100 = 87%
A value like 87% can show up in everyday life when a weather forecast says there’s a strong chance of rain, or when a student sees a score on a test. It tells you that something is true or complete for most of the whole, but not all of it.
To picture 87% quickly, imagine a grid of 100 squares with 87 shaded in. It’s a little less than nine out of every ten, so you can think of it as close to 90%.
One common point of confusion is treating 87% as if it means 87 out of 87. It means 87 out of 100, so the whole amount matters when you’re figuring out how much that percentage represents.