The fraction 17/67 expressed as a percentage is 25.37%. This value tells you that 17 out of 67 equal parts represent just over a quarter of the whole.
Seeing the fraction in this way makes it easier to compare with other numbers that are already in percent form. For example, 25.37% is close to 1/4, so you can quickly gauge its size without doing a detailed calculation.
Because the percentage is rounded to two decimal places, the exact value might be a tiny bit higher or lower, but 25.37% is the standard way to report it for most everyday uses.