37/40 as a percentage is 92.50%. This is the rounded value you get when you compare the fraction to a whole.
The fraction 37/40 means you have 37 parts out of a total of 40 equal parts. Since it is close to 40/40, or 1, the result is a high percentage. In everyday terms, it shows that you have about nine‑tenths of the whole.
You can see this number used in grades, scores, or any situation where a part of a whole is measured. Saying something is 92.50% complete tells people it is almost finished, but still a little bit left.