66/92 as a percentage is 71.74%. This number tells you how much of a whole the fraction represents when you look at it in terms of hundredths.
The fraction 66/92 can be simplified to 33/46, but the value stays the same. Whether you write it as a fraction or a percentage, it still means the same portion of a whole.
Seeing the percentage makes it easy to compare with other numbers that are already in percent form. For example, a test score of 71.74% would be just a little above the typical passing mark.
In everyday situations, using the percent form helps people understand the size of the part quickly, especially when dealing with charts, budgets, or grades.