114.17% is the change from 120 to 257
Calculation steps:
[( 257 - 120 ) ÷ 120] x 100 = 114.17%
Formula
Percentage change = [(257 - 120) / 120] x 100
Subtract the new number by the original number
257 - 120 = 137
137 ÷ 120 = 1.1416666666666666
1.1416666666666666 x 100 = 114.17%