-85.85% is the change from 869 to 123
Calculation steps:
[( 123 - 869 ) ÷ 869] x 100 = -85.85%
Formula
Percentage change = [(123 - 869) / 869] x 100
Subtract the new number by the original number
123 - 869 = -746
-746 ÷ 869 = -0.8584579976985041
-0.8584579976985041 x 100 = -85.85%