-16.51% is the change from 866 to 723
Calculation steps:
[( 723 - 866 ) ÷ 866] x 100 = -16.51%
Formula
Percentage change = [(723 - 866) / 866] x 100
Subtract the new number by the original number
723 - 866 = -143
-143 ÷ 866 = -0.1651270207852194
-0.1651270207852194 x 100 = -16.51%