-16.4% is the change from 866 to 724
Calculation steps:
[( 724 - 866 ) ÷ 866] x 100 = -16.4%
Formula
Percentage change = [(724 - 866) / 866] x 100
Subtract the new number by the original number
724 - 866 = -142
-142 ÷ 866 = -0.16397228637413394
-0.16397228637413394 x 100 = -16.4%