-32.68% is the change from 866 to 583
Calculation steps:
[( 583 - 866 ) ÷ 866] x 100 = -32.68%
Formula
Percentage change = [(583 - 866) / 866] x 100
Subtract the new number by the original number
583 - 866 = -283
-283 ÷ 866 = -0.32678983833718245
-0.32678983833718245 x 100 = -32.68%