68.09% is the value of 64/94 when it is expressed as a percentage.
The fraction 64/94 can be reduced by dividing both the numerator and the denominator by 2, giving the simpler form 32/47. Even in this reduced form, the size of the fraction stays the same, and it still corresponds to the same percentage.
Knowing the percentage makes it easy to compare this number with other values, such as test scores or discounts. Rounding to two decimal places keeps the figure clear and useful without overwhelming detail.