98.99% is the percentage form of the fraction 98/99. This value shows just how close the fraction is to a whole number, missing only a tiny bit from 100%.
Because 98/99 is so near to 1, it often appears in situations where you need an almost‑complete result. For example, if you completed 98 out of 99 tasks, you have finished 98.99% of the work, leaving just one task undone.
In everyday language, saying something is “about 99 %” is a quick way to convey that it’s almost entirely complete. Using the exact figure 98.99% gives a more precise picture while still being easy to understand.