-42.13% is the change from 235 to 136
Calculation steps:
[( 136 - 235 ) ÷ 235] x 100 = -42.13%
Formula
Percentage change = [(136 - 235) / 235] x 100
Subtract the new number by the original number
136 - 235 = -99
-99 ÷ 235 = -0.42127659574468085
-0.42127659574468085 x 100 = -42.13%