-28.64% is the change from 866 to 618
Calculation steps:
[( 618 - 866 ) ÷ 866] x 100 = -28.64%
Formula
Percentage change = [(618 - 866) / 866] x 100
Subtract the new number by the original number
618 - 866 = -248
-248 ÷ 866 = -0.2863741339491917
-0.2863741339491917 x 100 = -28.64%