Explanation:
multiplying by 0.25 is same as find the 1/4 of a number. it can also be said the number is reduced by 75% of itself or number is reduced by 3/4th of itself.
For example let the number be 100.
0.25*100=25 also 100/4=25 or 100-0.75*100= 25 or, 100-(3/4*100)= 25