-84.99% is the change from 866 to 130
Calculation steps:
[( 130 - 866 ) ÷ 866] x 100 = -84.99%
Formula
Percentage change = [(130 - 866) / 866] x 100
Subtract the new number by the original number
130 - 866 = -736
-736 ÷ 866 = -0.8498845265588915
-0.8498845265588915 x 100 = -84.99%