-96.56% is the change from 581 to 20
Calculation steps:
[( 20 - 581 ) ÷ 581] x 100 = -96.56%
Formula
Percentage change = [(20 - 581) / 581] x 100
Subtract the new number by the original number
20 - 581 = -561
-561 ÷ 581 = -0.9655765920826161
-0.9655765920826161 x 100 = -96.56%