-42.86% is the change from 238 to 136
Calculation steps:
[( 136 - 238 ) ÷ 238] x 100 = -42.86%
Formula
Percentage change = [(136 - 238) / 238] x 100
Subtract the new number by the original number
136 - 238 = -102
-102 ÷ 238 = -0.42857142857142855
-0.42857142857142855 x 100 = -42.86%