23/80 = 28.75%
A value like 28.75% might show up in a store discount, a survey result, or a weather report. For example, it could describe the share of shoppers who choose a certain product.
To picture it quickly, think of a little less than three out of every ten things. On a 100-square grid, it would cover a bit more than a quarter of the squares.
One common point of confusion is treating 28.75% as exactly 29% or exactly a quarter. Those are useful quick estimates, but they are not the same value.