3/30 = 10%
A value like 10% can show up in everyday life as a store discount, a tip, or the share of people in a group who chose a certain option. For example, it might describe 3 out of 30 students bringing lunch from home.
A quick way to picture 10% is to think of one out of every ten equal parts. In a group of 30, that’s about three people, so you can estimate the amount without much effort.
A common point of confusion is thinking that 10% always means 10 items. It means one tenth of the total, so the number of items depends on how large the whole group is.
