21/321 = ≈6.54%
Rounded to 2 decimal places.
The fraction 21/321 represents a small portion of a larger group, about 6.54%. You might see a value like this when 21 out of 321 survey respondents choose a certain answer, or when a small share of products in a shipment have a defect.
To picture it quickly, imagine dividing 321 items into about 15 equal groups. Twenty-one items would fill a little less than one of those groups, so the amount is close to one out of every 15 items.
A common mistake is to read 21/321 as 21.321 or to focus only on the 21 and ignore the total of 321. The denominator matters because it tells you the whole group being compared.