-11.89% is the change from 866 to 763
Calculation steps:
[( 763 - 866 ) ÷ 866] x 100 = -11.89%
Formula
Percentage change = [(763 - 866) / 866] x 100
Subtract the new number by the original number
763 - 866 = -103
-103 ÷ 866 = -0.11893764434180139
-0.11893764434180139 x 100 = -11.89%