61.73% is what you get when you turn the fraction 50/81 into a percent. This number tells you how big 50 parts are out of 81 when you compare it to a whole of 100.
The fraction 50/81 is a bit more than half. It’s useful when you need to see a part of something that isn’t a clean 1/2, like a piece of a pie that’s a little bigger than 50 %. Because it doesn’t reduce to a simpler fraction, it often stays as 50/81 in math problems.
When you see 61.73%, you know it represents the same value as 50/81. You can use either form depending on whether a fraction or a percent is more convenient for the situation.