18/215 = ≈8.37%
Rounded to 2 decimal places.
A value like 18 out of 215 could describe a small share of people in a survey, customers choosing one product, or items with a certain feature. In percentage form, that is about 8.37%, so it represents fewer than one person or item in every ten.
To picture 18/215 quickly, imagine a group of about 200 people and think of roughly 17 or 18 of them. It is close to 8%, but a little higher, so estimating it as about 1 in 12 is also useful.
A common mistake is to treat 18/215 as 18.215 or to read it as 18 percent because the numerator is 18. The denominator matters just as much: 18 out of 215 is a relatively small portion, not nearly one-fifth of the total.