-40.55% is the change from 984 to 585
Calculation steps:
[( 585 - 984 ) ÷ 984] x 100 = -40.55%
Formula
Percentage change = [(585 - 984) / 984] x 100
Subtract the new number by the original number
585 - 984 = -399
-399 ÷ 984 = -0.4054878048780488
-0.4054878048780488 x 100 = -40.55%