-71.45% is the change from 571 to 163
Calculation steps:
[( 163 - 571 ) ÷ 571] x 100 = -71.45%
Formula
Percentage change = [(163 - 571) / 571] x 100
Subtract the new number by the original number
163 - 571 = -408
-408 ÷ 571 = -0.7145359019264448
-0.7145359019264448 x 100 = -71.45%