-97.2% is the change from 571 to 16
Calculation steps:
[( 16 - 571 ) ÷ 571] x 100 = -97.2%
Formula
Percentage change = [(16 - 571) / 571] x 100
Subtract the new number by the original number
16 - 571 = -555
-555 ÷ 571 = -0.9719789842381786
-0.9719789842381786 x 100 = -97.2%