The fraction 57/74 is equal to 77.03% when converted to a percentage and rounded to two decimal places. This means that if you were to divide 57 by 74, you'd get a decimal value that's just over three-quarters of the way to 1. It's a bit more than 75%, but not quite as high as 80%.
In practical terms, 77.03% represents a fairly large portion of something. If you had a test with 74 questions and got 57 correct, you'd score about 77% overall. Or if you were looking at a pie chart, a 77.03% slice would take up more than three-quarters of the circle. It's a solid majority, though not quite as overwhelming as 80% or 90% would be.