-24.83% is the change from 866 to 651
Calculation steps:
[( 651 - 866 ) ÷ 866] x 100 = -24.83%
Formula
Percentage change = [(651 - 866) / 866] x 100
Subtract the new number by the original number
651 - 866 = -215
-215 ÷ 866 = -0.24826789838337182
-0.24826789838337182 x 100 = -24.83%