6/30 = 20%
A value like 20% can show up in everyday life as a sale discount, a survey result, or the amount of a phone battery used. For example, if one out of five people in a group chooses a certain snack, that choice represents 20% of the group.
To picture 20% quickly, imagine dividing something into five equal parts and shading one part. It’s also about one-fifth of a whole, so you can use that image to make a quick estimate.
A common point of confusion is mixing up 20% with 20 percentage points. If a result rises from 20% to 40%, it has increased by 20 percentage points, but it has doubled in size.
