74/77 as a percentage is 96.10%. This number shows how close the fraction is to a whole, and the rounding makes it easy to read.
The fraction 74/77 means you have 74 parts out of a total of 77 equal parts. In everyday situations, such a high fraction usually indicates something that is almost complete or almost full.
When you see 96.10%, you can think of it as “almost all” of something. For example, if a class of 77 students has 74 who passed a test, the pass rate would be about 96.10%.
Remember that percentages are just another way to talk about fractions, so you can switch between them depending on which form makes the most sense for your audience.