36/71 as a percentage is 50.70%. This number tells you how much of a whole 36 parts out of 71 represent when you think of the whole as 100 %.
The fraction 36/71 is a simple ratio that cannot be reduced any further. When you write it as a decimal, it goes on forever without repeating, so the percentage form is a handy way to see its size at a glance.
Because we rounded the decimal to two places, the percentage is shown as 50.70 %. In many everyday situations, such as reports or quick calculations, this rounded value is precise enough to be useful.