-85.37% is the change from 861 to 126
Calculation steps:
[( 126 - 861 ) ÷ 861] x 100 = -85.37%
Formula
Percentage change = [(126 - 861) / 861] x 100
Subtract the new number by the original number
126 - 861 = -735
-735 ÷ 861 = -0.8536585365853658
-0.8536585365853658 x 100 = -85.37%