62/64 as a percentage is 96.88%. This means the fraction is just a little under a whole, so it’s almost one hundred percent. The number looks big because the numerator is very close to the denominator.
The fraction 62/64 can also be reduced to 31/32, which still gives the same percentage. Seeing it as 31 parts out of 32 helps understand why it’s so close to 100 %.
In everyday terms, 96.88% tells you that if you had 64 pieces of something and you got 62 of them, you’d have almost all of it. It’s a handy way to compare large groups quickly.