77/88 = 87.5%
A value like 77/88, or 87.5%, might describe attendance, a test score, or the amount of a phone battery that remains. For example, if you attended 77 out of 88 classes, you would have been present almost seven-eighths of the time.
You can picture it as a little less than 9 out of every 10 parts. On a progress bar, it would be nearly full, with about one-eighth still unfinished.
A common mistake is to round 87.5% to 88% and then treat it as exact. Another point of confusion is thinking it means 87.5 out of 100 individual items, when it can represent a part of any total.