The fraction 43/44 is the same as 97.73% when you write it as a percentage.
This number is very close to a whole, which means the part you have is almost the entire whole. In everyday language you could say you have “about ninety‑eight percent” of something.
Because it is so near 100 %, 43/44 is useful for showing how little is left out. For example, if you score 43 out of 44 on a test, you’ve earned a very high mark, just a tiny bit shy of a perfect score.