-90.53% is the change from 570 to 54
Calculation steps:
[( 54 - 570 ) ÷ 570] x 100 = -90.53%
Formula
Percentage change = [(54 - 570) / 570] x 100
Subtract the new number by the original number
54 - 570 = -516
-516 ÷ 570 = -0.9052631578947369
-0.9052631578947369 x 100 = -90.53%