-30.84% is the change from 843 to 583
Calculation steps:
[( 583 - 843 ) ÷ 843] x 100 = -30.84%
Formula
Percentage change = [(583 - 843) / 843] x 100
Subtract the new number by the original number
583 - 843 = -260
-260 ÷ 843 = -0.3084223013048636
-0.3084223013048636 x 100 = -30.84%