72/73 expressed as a percentage is 98.63%. This number shows how close the fraction is to a full whole.
Since the percentage is so high, the fraction represents almost the entire amount. In everyday terms, if you had 73 parts of something and you kept 72 of them, you would have kept about 99 % of it.
People often use this kind of figure to show very high success rates, efficiency, or completeness. It’s a quick way to see that only a tiny portion—about 1.37 %—is missing.