79/81 as a percentage is 97.53%. This value is already rounded to two decimal places, so you can use it directly in any calculation that requires a percent.
The fraction 79/81 is very close to 1, which means it represents a large portion of a whole. In everyday terms, saying something is 97.53% complete tells you that almost everything is finished, leaving just a tiny part left.
When you see a percentage like 97.53%, you know the original fraction is almost the whole. This makes it easy to compare with other percentages or to quickly gauge how much of something is present without working with the fraction itself.
