4/603 = ≈0.66%
Rounded to 2 decimal places.
A fraction like 4/603 can describe a very rare event, such as 4 people out of 603 responding “yes” to a survey or experiencing a specific problem. That is about 0.66%, so it represents a small but real share of the group.
To picture it quickly, imagine a crowd of about 600 people and choosing only 4 of them. You can also estimate it as roughly 1 person out of every 150, which makes its size easier to understand.
A common mistake is to read 0.66% as 0.66, or 66%, instead of recognizing that the percent sign means less than 1 percent. It is also easy to assume that a tiny percentage means zero people, but in a large group, even a fraction this small can include several individuals.