Question

if 100 is increased by 40% and then decreased by 40% then the resulting nomber is

Answer 1

Your answer is here
100+40=140
100-40=60

Answer 2

100 increased by 40% = 140
then decreased by 40% (please note in decreasing case 40% is to be deceased from 140 not from 100)

So the resulting answer is 56