-40.59% is the change from 983 to 584
Calculation steps:
[( 584 - 983 ) ÷ 983] x 100 = -40.59%
Formula
Percentage change = [(584 - 983) / 983] x 100
Subtract the new number by the original number
584 - 983 = -399
-399 ÷ 983 = -0.4059003051881994
-0.4059003051881994 x 100 = -40.59%