78/87 as a percentage is 89.66%. This number tells you how close the fraction is to a whole one hundred.
The fraction 78/87 can be simplified to 26/29, which still represents the same value. It is a little less than 9/10, so it makes sense the percentage is just under 90%.
Seeing the percentage makes it easy to compare this value with other numbers, like test scores or discount rates.
Because we rounded to two decimal places, the figure is tidy and ready to use in reports or quick calculations.
