4/166 = ≈2.41%
Rounded to 2 decimal places.
The fraction 4/166 represents a very small share of a larger group, about 2.41%. You might see a value like this when 4 people out of 166 survey participants choose a certain answer, or when 4 items in a shipment of 166 have a defect.
To picture it quickly, imagine a group of about 100 people: this fraction would be close to 2 or 3 people. It is also a little less than 1 out of every 40, which makes it easier to recognize as uncommon but not impossible.
A common mistake is to treat 2.41% as if it were 2.41, or as if 2 out of every 10 people were included. The percent sign means the amount is measured out of 100, so this value describes only a small portion of the whole.