81.13% is what you get when you turn the fraction 43/53 into a percent.
This fraction is a little more than four‑tenths, so it lands just above the 80% mark. It’s useful when you need a quick sense of size without doing the exact division each time.
If you’re comparing numbers, thinking of 43/53 as 81.13% lets you see it clearly on a percent‑based scale, making it easy to match with other percentages you might already know.