-96.35% is the change from 575 to 21
Calculation steps:
[( 21 - 575 ) ÷ 575] x 100 = -96.35%
Formula
Percentage change = [(21 - 575) / 575] x 100
Subtract the new number by the original number
21 - 575 = -554
-554 ÷ 575 = -0.9634782608695652
-0.9634782608695652 x 100 = -96.35%