80/100 = 80%
A value like 80/100, or 80%, shows up in everyday life when a student gets 80 points out of 100 on a test. It can also describe a sale discount, a phone battery level, or how much of a task has been completed.
You can picture 80% as 8 out of every 10 equal parts. It is close to the whole amount, leaving about one-fifth, or 20%, still missing.
A common mistake is thinking 80% means 80 items no matter what the total is. The percent always depends on the whole amount, so 80% of 50 is different from 80% of 1,000.
