-22.75% is the change from 866 to 669
Calculation steps:
[( 669 - 866 ) ÷ 866] x 100 = -22.75%
Formula
Percentage change = [(669 - 866) / 866] x 100
Subtract the new number by the original number
669 - 866 = -197
-197 ÷ 866 = -0.22748267898383373
-0.22748267898383373 x 100 = -22.75%