68/92 as a percentage is 73.91%. This number tells you how much of a whole 68 parts out of 92 represent when you think in terms of 100.
The fraction 68/92 can also be reduced to 34/46, and further to 17/23, which is still the same value. Whether you write it as a fraction, a decimal (about 0.739), or a percentage, the proportion stays the same.
Knowing that 73.91% is the percentage form makes it easy to compare this amount to other percentages, such as test scores or discount rates, without having to work with the original fraction.