63.86% is the result when you convert the fraction 53/83 to a percentage. This shows how much of a whole 53 is when the whole is 83.
The fraction 53/83 is a little more than half, which is why its percentage is just under 64%. When you see the number 63.86%, you can picture it as almost two‑thirds of a whole.
In everyday use, you might round this to 64% for quick estimates, but the precise figure remains 63.86%. This helps when you need an exact comparison or calculation.