24/26 as a percentage is 92.31%. This tells you that the fraction is very close to a whole, with only a tiny part missing.
The fraction 24/26 can be reduced to 12/13, which still represents the same value. Because the numbers are large and close together, the resulting percentage is high.
A result of 92.31% is useful in everyday contexts, like scoring 92.31% on a test or saying that 92.31% of a group prefers a certain option. It simply shows a strong majority.