42/258 = ≈16.28%
Rounded to 2 decimal places.
A value like 42 out of 258, or about 16.28%, could show up in everyday life when 42 students out of 258 attend an event, or when 42 items in a shipment are marked for inspection. It represents a noticeable minority, but it is still much less than one-quarter of the total.
To picture it quickly, imagine dividing a group into about six equal parts and shading roughly one of them. Since 16.28% is a little less than 17%, it is close to one-sixth of the whole.
A common mistake is to treat 42/258 as if it were 42%, because people sometimes focus on the numerator and overlook the denominator. The denominator, 258, tells you the size of the entire group, so the same 42 could represent a very different percentage in a smaller or larger group.