92.93% is what you get when you turn the fraction 92⁄99 into a percentage.
The fraction 92⁄99 is very close to a whole, so its percentage is also close to 100 %. This makes it useful when you want to show something that is almost complete, like a test score or a success rate.
In everyday language you can say “about 93 %” and people will understand it’s a high proportion. It’s a handy way to compare parts of a whole without dealing with messy fractions.