90/91 = ≈98.9%
Rounded to 2 decimal places.
A value like 98.9% can describe how often something happens, such as a bus arriving on time or a phone successfully connecting to Wi-Fi. It means the result is very close to perfect, though not quite there.
To picture 90/91, imagine 91 seats in a room with 90 people in them. Almost every seat is filled, with just one empty.
A common point of confusion is treating 98.9% as exactly 99% or as 100%. It’s close to both, but that small gap still matters when the total number of items is large.
