Question

What is the result of increasing a quantity by 20% followed by decreasing it by 20%?

Answer 1

Answer:

let the number be 100

increase 20% on 120=(20/100)*120=24

nett amount 120-24=96

so decrease 100-96=4

decrease of 4 out of 100

so percentage of decrease is 4%

Answer 2

Answer:

The will be no change as the increasing amount is the same as the decreasing amount