When you change the fraction 25/58 to a percentage you get 43.10%. This means that 25 out of every 58 equal parts is a little less than half of the whole.
The fraction 25/58 is a proper fraction, so its value is always less than 1. It sits between 0.4 and 0.5 when you think of it as a decimal, which matches the 43.10% figure you see on a chart or a report.
Knowing the percentage makes it easy to compare this portion with other values. For example, if you scored 25 out of 58 on a test, your result would be reported as a 43.10% grade, giving a quick sense of performance.