91.67% is what you get when you turn the fraction 11/12 into a percentage.
The fraction 11/12 means you have eleven equal parts out of a total of twelve. It’s a little less than a whole, so the percentage is just under 100%. This makes it easy to compare with other numbers that are already in percent form.
Because the value is so close to 100%, 11/12 shows up a lot in real‑life situations, like measuring how much of a pizza is left after a slice is taken or calculating how much of a budget has been spent. Knowing that it’s 91.67% helps you quickly see that most of the whole is still there.