78/80 = 97.5%
A value like 78/80, or 97.5%, might show up as a score on a test, a survey response rate, or the share of items that passed inspection. It means the result is very close to complete, with only a small amount missing.
To picture it quickly, imagine 80 squares with 78 shaded: nearly the whole grid would be filled in. You can also think of it as just a little less than 98 out of 100.
One common confusion is treating 97.5% as exactly 98%, even though rounding changes the value slightly. The difference is small, but it can matter when scores or measurements need to be exact.
