Question

A number is first increased by 20% and then the new number so obtained is decreased by 20% find the net increase or decrease percent full solution

Answer 1

this is an 4% losses

Answer 2

let a number be = 100
first it increased by 20% = 100 * 20/100 = 20
     so it is increased by  20 = 100+20 =120
secondly, 
now it is decreased by 20%  = 120*20/100 = 24
        120-24 =96
 that means , in net it is 4% decreasing