2/13 as a percentage is 15.38%. This is the rounded value you get when you change the fraction into a percent.
The fraction 2/13 is a small part of a whole, and its decimal form repeats as 0.153846… The repeat makes it a little tricky to write exactly, so rounding to two decimal places gives a clean percent that’s easy to read.
In everyday life you might see this percentage when dealing with small shares, like a tiny slice of a pizza or a modest interest rate. Knowing that 2 out of 13 parts is about 15 percent helps you compare it quickly with other numbers.