The fraction 90/95 as a percentage is 94.74%. This means the value is just a little shy of a full 100%, showing that 90 is almost the same as 95.
Since 90 and 95 share a common factor of 5, the fraction can be simplified to 18/19. Even in its reduced form, it still represents a very high portion of the whole, which is reflected in the percentage being close to 95%.
You’ll see this kind of number when comparing scores, success rates, or any situation where something almost reaches the total possible amount. It’s a quick way to see that the result is strong, but not quite perfect.