13/24 as a percentage is 54.17%. This value tells you that the fraction is a little more than one‑half when expressed in percent form.
The fraction 13/24 can be thought of as 13 parts out of a total of 24 equal parts. Since it is just over the halfway point, the percentage reflects that by being a bit higher than 50%.
When you see 54.17%, remember it’s rounded to two decimal places, so the exact value is a little more precise than the simple “about 54%” you might use in everyday talk. This makes it useful for quick estimates and for reporting data that needs a tidy, rounded figure.