-96.34% is the change from 573 to 21
Calculation steps:
[( 21 - 573 ) ÷ 573] x 100 = -96.34%
Formula
Percentage change = [(21 - 573) / 573] x 100
Subtract the new number by the original number
21 - 573 = -552
-552 ÷ 573 = -0.9633507853403142
-0.9633507853403142 x 100 = -96.34%