-39.94% is the change from 984 to 591
Calculation steps:
[( 591 - 984 ) ÷ 984] x 100 = -39.94%
Formula
Percentage change = [(591 - 984) / 984] x 100
Subtract the new number by the original number
591 - 984 = -393
-393 ÷ 984 = -0.39939024390243905
-0.39939024390243905 x 100 = -39.94%