-84.12% is the change from 869 to 138
Calculation steps:
[( 138 - 869 ) ÷ 869] x 100 = -84.12%
Formula
Percentage change = [(138 - 869) / 869] x 100
Subtract the new number by the original number
138 - 869 = -731
-731 ÷ 869 = -0.8411967779056386
-0.8411967779056386 x 100 = -84.12%