90.37% is the change from 135 to 257
Calculation steps:
[( 257 - 135 ) ÷ 135] x 100 = 90.37%
Formula
Percentage change = [(257 - 135) / 135] x 100
Subtract the new number by the original number
257 - 135 = 122
122 ÷ 135 = 0.9037037037037037
0.9037037037037037 x 100 = 90.37%