-96.3% is the change from 567 to 21
Calculation steps:
[( 21 - 567 ) ÷ 567] x 100 = -96.3%
Formula
Percentage change = [(21 - 567) / 567] x 100
Subtract the new number by the original number
21 - 567 = -546
-546 ÷ 567 = -0.9629629629629629
-0.9629629629629629 x 100 = -96.3%