361/366 = ≈98.63%
Rounded to 2 decimal places.
A value like 361/366 could describe being present for 361 days in a leap year, meaning only five days were missed. It might also represent a service that worked on 361 out of 366 days, showing an extremely high level of reliability: 98.63%.
To picture it quickly, imagine 366 small squares with 361 colored in and only 5 left blank. You can also think of it as just under 99%, with about 1.37% missing.
A common point of confusion is assuming the denominator should always be 365, but a leap year has 366 days. Also, 98.63% is very close to 99%, but it is not exactly 99% because the fraction leaves five parts out of the total.