20/906 = ≈2.21%
Rounded to 2 decimal places.
A fraction like 20/906 might show up when 20 people out of a group of 906 respond to a survey, report an issue, or qualify for a rare event. That makes the share about 2.21%, which is a small portion of the total.
To picture it quickly, imagine 906 dots or people arranged in a large crowd, with only 20 highlighted. You can also think of it as roughly 2 out of every 100 people, or about 1 person in 45.
A common mistake is to treat 20/906 as if it were 20%, simply because the numerator is 20. The denominator matters just as much, since 20 is being compared with 906 rather than with 100.