26/27 as a percentage is 96.30%. This means the fraction is just a little short of a full 100 %.
When you see 96.30 % you can think of it as “almost all.” In everyday situations, such a high percentage often shows that something is nearly complete or almost perfect.
The figure is rounded to two decimal places, so the true value is a tiny bit higher or lower, but for most purposes 96.30% gives a clear and useful picture.