33.33% is the change from 120 to 160
Calculation steps:
[( 160 - 120 ) ÷ 120] x 100 = 33.33%
Formula
Percentage change = [(160 - 120) / 120] x 100
Subtract the new number by the original number
160 - 120 = 40
40 ÷ 120 = 0.3333333333333333
0.3333333333333333 x 100 = 33.33%