-60.29% is the change from 136 to 54
Calculation steps:
[( 54 - 136 ) ÷ 136] x 100 = -60.29%
Formula
Percentage change = [(54 - 136) / 136] x 100
Subtract the new number by the original number
54 - 136 = -82
-82 ÷ 136 = -0.6029411764705882
-0.6029411764705882 x 100 = -60.29%