69.74% is the percentage that corresponds to the fraction 53/76. This value shows how much of a whole the fraction represents when expressed in percent form.
The percentage tells you that 53 out of every 76 parts is just under seven‑tenths of a whole. In everyday terms, if you had 76 pieces of something and you took 53 of them, you would have taken about 70 % of the total.
Because the number is rounded to two decimal places, the exact decimal might be a tiny bit higher or lower, but 69.74% is the standard way to report it for most practical uses.