66/2637 = ≈2.5%
Rounded to 2 decimal places.
A value like 66/2637, or about 2.5%, can show up in everyday life when only a small share of a group is affected. For example, it could represent customers who choose a certain product, students who qualify for a special program, or items in a shipment that have a defect.
To picture 2.5% quickly, think of about 2 or 3 people out of every 100. In a group of 1,000, it would be roughly 25 people, so it is noticeable but still a fairly small portion.
A common mistake is treating 2.5% as if it were 25%, simply because both numbers contain 25. Another point of confusion is assuming that a small percentage always means a small number; in a very large group, even 2.5% can represent thousands of people.