-93.38% is the change from 136 to 9
Calculation steps:
[( 9 - 136 ) ÷ 136] x 100 = -93.38%
Formula
Percentage change = [(9 - 136) / 136] x 100
Subtract the new number by the original number
9 - 136 = -127
-127 ÷ 136 = -0.9338235294117647
-0.9338235294117647 x 100 = -93.38%