-69.12% is the change from 136 to 42
Calculation steps:
[( 42 - 136 ) ÷ 136] x 100 = -69.12%
Formula
Percentage change = [(42 - 136) / 136] x 100
Subtract the new number by the original number
42 - 136 = -94
-94 ÷ 136 = -0.6911764705882353
-0.6911764705882353 x 100 = -69.12%