98.08% is what you get when you turn the fraction 51/52 into a percentage.
This fraction is just one part shy of a whole, so it represents a very high proportion—almost the entire amount. In everyday terms, if you had 52 pieces of something and you kept 51, you would still have about 98 % of the original set.
Because the percentage is so close to 100 %, it’s useful when you want to show that something is almost complete, like a test score of 98 % or a product that is 98 % effective. The rounded figure 98.08% gives a clear, easy‑to‑read picture of how large the portion is.
