The fraction 23/31 works out to 74.19% when it’s turned into a percent. This is the rounded figure you’ll see most often.
Seeing 23 out of 31 parts gives you a sense of how large the portion is compared to a whole. It’s a little more than three‑quarters, which is why the percent is close to 75%.
Because we round to two decimal places, the exact number becomes 74.19%. This makes it easy to compare with other percentages in everyday situations.