Respuesta :

First you do 120-90=30 then divide 30 by 120 which equals 0.25 then multiply it by 100 then you get 25%
abudi
percent of discount = percent of change
change in price = $120 - $90 = $30
so percentage of change = change / original amount multiplied by hundred

in short...... change / original value × 100
= 30 / 120 ×100
= 1 / 4 × 100
= 25 %

HOPE IT HELPED !!!