Question

Suppose if your school fees is increased by 20% in February, and again in March it is decreased by 20%. What will be effective change in your school fee?
what will be your fees in April

Answer 1

X = school fee (first time)

In February, the school fee is X + 20%X = 120%X
In March, the school fee is 120%X - {(20%)120%x} = 120%X - 24%X = 96%X

So, the the school fee is decreasing by 4% from the beginning.
And the school fee in April is 96% from first school fee.