71/78 expressed as a percentage is 91.03%. This means that the fraction is a little over nine‑tenths of a whole.
The fraction 71/78 is already pretty close to 1, so its percentage is also close to 100 %. When you see a number like 91.03 %, you know the value is high but not quite complete.
In everyday life, you might use this kind of conversion to compare scores, success rates, or parts of a whole. Knowing that 71 out of 78 is about 91 % helps you quickly understand how large the portion is without doing any extra math.