-33.1% is the change from 867 to 580
Calculation steps:
[( 580 - 867 ) ÷ 867] x 100 = -33.1%
Formula
Percentage change = [(580 - 867) / 867] x 100
Subtract the new number by the original number
580 - 867 = -287
-287 ÷ 867 = -0.33102652825836215
-0.33102652825836215 x 100 = -33.1%