-11.32% is the change from 866 to 768
Calculation steps:
[( 768 - 866 ) ÷ 866] x 100 = -11.32%
Formula
Percentage change = [(768 - 866) / 866] x 100
Subtract the new number by the original number
768 - 866 = -98
-98 ÷ 866 = -0.11316397228637413
-0.11316397228637413 x 100 = -11.32%