-82.12% is the change from 867 to 155
Calculation steps:
[( 155 - 867 ) ÷ 867] x 100 = -82.12%
Formula
Percentage change = [(155 - 867) / 867] x 100
Subtract the new number by the original number
155 - 867 = -712
-712 ÷ 867 = -0.8212226066897347
-0.8212226066897347 x 100 = -82.12%