The fraction 50/66 is equal to 75.76% when converted to a percentage. This means that if you had 66 items and took 50 of them, you'd have about three-quarters of the total. It's a pretty big chunk, more than half but not quite as much as 80%.
This percentage comes up in various everyday situations. For example, if you answered 50 questions correctly out of 66 on a test, you'd score 75.76%. Or if you completed 50 out of 66 tasks on your to-do list, you'd be 75.76% done with your work. It's a useful number to know for quick mental math when dealing with parts of a whole.
