19/25 = 76%
A value of 76% might show up as a test score, a battery level, or the share of people who choose a certain option in a poll. It tells you that the amount is a little over three-quarters of the whole.
To picture 19/25 quickly, imagine a square split into 25 equal tiles, with 19 shaded. Most of the square would be filled, with a small section left blank.
One common mix-up is treating 76% as 76 out of 100 items, even when the total is something else. The percentage describes a share of the whole, so the actual number of items depends on the total.