2.78% is 2/72 as a percentage. This tiny slice of a whole is easy to picture: if you split something into 72 equal parts, taking just 2 of those parts gives you about 2.78% of the total.
The fraction 2/72 can be reduced to 1/36, which still represents the same portion of a whole. Whether you write it as 2/72, 1/36, or 2.78%, the value stays the same—it’s just different ways to show the same small part.
You might see this kind of number when dealing with low‑interest rates, tiny discounts, or small probabilities in everyday life. Knowing the percentage helps you quickly understand how little of the whole you’re dealing with, without having to count all 72 pieces.