86.36% is what you get when you turn the fraction 76⁄88 into a percentage.
The fraction 76⁄88 can be simplified to 19⁄22, which still represents the same amount. As a decimal it is about 0.86, and when you multiply by 100 you arrive at the rounded percentage shown above.
In everyday situations, this percentage can help you compare parts of a whole. For example, if you scored 76 points out of a possible 88 on a test, you actually earned 86.36% of the total points.
Remember that percentages are just another way to talk about fractions, making it easier to see how large or small a part is compared to the whole.
