Question

if X is 25% more than Y then how much %less is Y from X

Answer 1

let y = 100%
then x = 100% + 100% ×25/100
..........= 100% +25% = 125%

so
$\frac{25}{125} \times 100$
= 20%
so y is 20% less then x

Answer 2

solution:
the answer is 25%