684/1398 = ≈48.93%
Rounded to 2 decimal places.
A value like 684 out of 1,398 could show up in a survey, such as 684 people choosing one option out of everyone who responded. That is about 48.93%, so it is just slightly less than half of the group.
To picture 684/1398 quickly, imagine splitting the whole group into two equal parts. The fraction is very close to one-half, but it falls short by a small amount, so you could estimate it as roughly 49%.
One common mistake is calling this exactly 50% just because it is near half. The difference matters when the group is large, since being a little over 1% below half represents many people.