27/900 = 3%
A value like 27/900, or 3%, can show up in everyday situations such as a store discount, a survey result, or the chance of a rare event. For example, 3% of a group of 900 people would be 27 people.
You can picture 3% as 3 out of every 100, or about 1 out of every 33. It is a small amount—roughly the size of a few items in a group of 100—so it helps to imagine only a thin slice of the whole.
A common mistake is thinking that 27/900 is 27% because of the 27 in the numerator. The denominator matters too, since it tells you the total group being considered.