10/27 expressed as a percentage is 37.04%. This rounded figure tells you how much of a whole the fraction represents when you think in terms of hundredths.
The fraction 10/27 is a bit less than one half, which is why the percentage is under 50 %. When you need a quick sense of size, thinking of it as about 37 % of a whole can be helpful in everyday calculations.
In reports or presentations, you can use 37.04% to communicate the value clearly and precisely, without having to write the fraction each time. This makes it easier for audiences to compare it with other percentages.