-17.09% is the change from 866 to 718
Calculation steps:
[( 718 - 866 ) ÷ 866] x 100 = -17.09%
Formula
Percentage change = [(718 - 866) / 866] x 100
Subtract the new number by the original number
718 - 866 = -148
-148 ÷ 866 = -0.17090069284064666
-0.17090069284064666 x 100 = -17.09%