20/536 = ≈3.73%
Rounded to 2 decimal places.
A fraction like 20/536 could describe 20 people out of 536 surveyed choosing a certain option, or 20 defective items in a shipment of 536. That is about 3.73%, so it represents a small share of the total.
To picture it quickly, imagine a group of 100 people: roughly 4 of them would fit the same proportion. You can also think of it as about 1 out of every 27 people, which makes the size easier to estimate.
A common mistake is to treat 20/536 as 20% because the numerator is 20. The denominator matters just as much, since 20 out of 536 is much smaller than 20 out of 100.