97.73% is the percentage equivalent of the fraction 86/88. This number shows how close the fraction is to a whole, and the rounding to two decimal places makes it easy to read.
The fraction 86/88 can also be simplified to 43/44, which is still a very high value. Because the numerator is only two less than the denominator, the result is just under 100%.
In everyday situations, a value like 97.73% could represent a test score, a completion rate, or any other measurement where you want to see how close something is to being complete.
Overall, the fraction and its percentage both tell the same story: the amount is almost total, missing only a tiny portion.