a Germ-X Percent
A number that's so close to 100% it might as well be 100%, but don't let it fool you.
'99.99%' is just a fancy way of saying 'almost all of them.'
I believe in 99.99%, but only if I don't have to use it on my socks.
99.99% is like getting a 99% on a test, you're still failing if you're me.