The fraction 85/99 is equal to 85.86% when converted to a percentage and rounded to two decimal places. This percentage represents how much of a whole the fraction represents. In other words, if you had 99 equal parts of something and took 85 of those parts, you'd have about 85.86% of the total.
To put this in perspective, 85.86% is pretty close to 86%, which is just over 6/7 or about 7/8 of the whole. It's a fairly large portion, more than three-quarters but less than nine-tenths. In everyday situations, you might see this percentage used in things like test scores, sales discounts, or statistics about various topics.