23.53% is the change from 136 to 168
Calculation steps:
[( 168 - 136 ) ÷ 136] x 100 = 23.53%
Formula
Percentage change = [(168 - 136) / 136] x 100
Subtract the new number by the original number
168 - 136 = 32
32 ÷ 136 = 0.23529411764705882
0.23529411764705882 x 100 = 23.53%