-20.44% is the change from 866 to 689
Calculation steps:
[( 689 - 866 ) ÷ 866] x 100 = -20.44%
Formula
Percentage change = [(689 - 866) / 866] x 100
Subtract the new number by the original number
689 - 866 = -177
-177 ÷ 866 = -0.20438799076212472
-0.20438799076212472 x 100 = -20.44%