-58.09% is the change from 136 to 57
Calculation steps:
[( 57 - 136 ) ÷ 136] x 100 = -58.09%
Formula
Percentage change = [(57 - 136) / 136] x 100
Subtract the new number by the original number
57 - 136 = -79
-79 ÷ 136 = -0.5808823529411765
-0.5808823529411765 x 100 = -58.09%