68.38% is the change from 136 to 229
Calculation steps:
[( 229 - 136 ) ÷ 136] x 100 = 68.38%
Formula
Percentage change = [(229 - 136) / 136] x 100
Subtract the new number by the original number
229 - 136 = 93
93 ÷ 136 = 0.6838235294117647
0.6838235294117647 x 100 = 68.38%