84/87 as a percentage is 96.55%. This number comes from turning the fraction into a percent and rounding it to two decimal places.
The fraction 84/87 is very close to 1, which means it represents a value that is almost whole. When you look at it on a number line, it sits just a little bit short of the point that marks 1.
Because the fraction is so near to 1, the percentage is also near to 100 %. The tiny difference shows up in the decimal part, giving us the 0.45 % that keeps it from being exactly 100 %.
In everyday use, you can think of 96.55% as “about 97 out of every 100.” It’s a handy way to understand how large the fraction is without having to work with the numbers 84 and 87 directly.