68/83 as a percentage is 81.93%. This number tells you how much of a whole 68 parts out of 83 represent when you look at it in terms of hundredths.
The fraction 68/83 is a proper fraction, meaning the numerator is smaller than the denominator. It sits between 0 and 1, so when you change it to a percent you get a value under 100%.
Because the result is rounded to two decimal places, you see 81.93% instead of a longer decimal. Rounding makes the number easier to read and use in everyday situations.
If you need to compare this to other fractions or percentages, just remember that 81.93% means about eight out of ten parts, which is a fairly high proportion.