71/78 = ≈91.03%
Rounded to 2 decimal places.
A value like 91.03% might describe how many questions someone got right on a test, how much of a phone battery is charged, or how many items in a batch passed inspection. It means the result is very close to complete, but not quite all the way there.
To picture 71/78 quickly, imagine a group of 78 things with 7 missing from a full set. Since 7 is a little less than one-tenth of 78, the fraction is a little more than nine-tenths.
One common point of confusion is treating 91.03% as exactly 91% or as a perfect score. The extra digits make it more precise, but it still represents a value slightly below 100%.