-89.26% is the change from 866 to 93
Calculation steps:
[( 93 - 866 ) ÷ 866] x 100 = -89.26%
Formula
Percentage change = [(93 - 866) / 866] x 100
Subtract the new number by the original number
93 - 866 = -773
-773 ÷ 866 = -0.8926096997690531
-0.8926096997690531 x 100 = -89.26%