Question

A's income is 25% more then B's income B'income in term of A's income

Answer 1

B's income = A's income - 25% of A's income

Answer 2

Let B's income be 100. Then A's income is 25% more than B, which is 125.

Now, you need to find how much is B's income lower than A.

125 - 0.2*125 = 100

So, if you lower 125 (A's income) by 20% you get 100 (B's income).

You can use: ( (Final - Initial) )/initial * 100 % to calculate % change