-93.15% is the change from 584 to 40
Calculation steps:
[( 40 - 584 ) ÷ 584] x 100 = -93.15%
Formula
Percentage change = [(40 - 584) / 584] x 100
Subtract the new number by the original number
40 - 584 = -544
-544 ÷ 584 = -0.9315068493150684
-0.9315068493150684 x 100 = -93.15%