-19.98% is the change from 866 to 693
Calculation steps:
[( 693 - 866 ) ÷ 866] x 100 = -19.98%
Formula
Percentage change = [(693 - 866) / 866] x 100
Subtract the new number by the original number
693 - 866 = -173
-173 ÷ 866 = -0.1997690531177829
-0.1997690531177829 x 100 = -19.98%