26/55 as a percentage is 47.27%. This value shows how much of a whole the fraction represents when expressed in percent form.
The fraction 26/55 is a bit less than one half, so its percentage is just under 50%. That’s why the number lands in the high 40s.
When you see 47.27% on a chart or report, you can think of it as roughly 47 out of every 100 parts, which matches the original fraction quite closely.