88/490 = ≈17.96%
Rounded to 2 decimal places.
A fraction like 88/490 can show up when 88 people out of 490 surveyed choose the same answer, or when 88 items in a large shipment have a certain feature. That portion is about 17.96%, so it represents a little less than one-fifth of the total.
To picture it quickly, imagine dividing the whole group into five roughly equal parts. Since one-fifth is 20%, 88/490 is just under one of those five parts.
A common mistake is to read 17.96% as nearly 18 whole items instead of nearly 18 out of every 100 items. It is also easy to assume the fraction is close to one-quarter, but one-quarter would be 25%, which is noticeably larger.