23.61% is what you get when you turn the fraction 17/72 into a percentage. This rounded value shows how much of a whole 17 parts out of 72 represent.
The fraction 17/72 is a little more than one‑fifth of a whole. When you compare it to 100%, it lands just under a quarter, which is why the percentage looks close to 24%.
If you need to use this number in a report or a quick calculation, you can safely write 23.61% as the percentage form of 17/72. It’s a handy way to communicate the size of that part without dealing with fractions.