-84.08% is the change from 867 to 138
Calculation steps:
[( 138 - 867 ) ÷ 867] x 100 = -84.08%
Formula
Percentage change = [(138 - 867) / 867] x 100
Subtract the new number by the original number
138 - 867 = -729
-729 ÷ 867 = -0.8408304498269896
-0.8408304498269896 x 100 = -84.08%