1.00% is what 1/100 equals when expressed as a percentage.
The fraction 1/100 means one part out of a hundred equal parts. It’s a tiny slice, just a single unit in a set of a hundred. Seeing it as a percentage makes it easy to compare with other numbers that are already in percent form.
In everyday life you’ll meet 1 % in things like discount stickers, interest rates, or statistics. Knowing that 1/100 is the same as 1.00% helps you quickly understand how small or large a change is.
Because the value is so small, it’s often used when precision matters, such as in scientific measurements or financial calculations. Remembering the simple link between the fraction and its percent form makes those calculations quicker and clearer.