89.71% is the change from 136 to 258
Calculation steps:
[( 258 - 136 ) ÷ 136] x 100 = 89.71%
Formula
Percentage change = [(258 - 136) / 136] x 100
Subtract the new number by the original number
258 - 136 = 122
122 ÷ 136 = 0.8970588235294118
0.8970588235294118 x 100 = 89.71%