38/50 = 76%
A value like 38/50, or 76%, might show up as a quiz score, a poll result, or the amount of a phone battery left. It tells you that a little more than three-quarters of the total is included.
To picture 38/50 quickly, imagine a bar split into 50 equal parts, with 38 shaded. You can also think of it as just over three-quarters of the bar, since three-quarters is 37.5 parts out of 50.
One common mix-up is treating 76% as 76 out of 100 items, even when the total is only 50. The percentage describes the share of the whole, so the actual number of items depends on the total.