-71.8% is the change from 571 to 161
Calculation steps:
[( 161 - 571 ) ÷ 571] x 100 = -71.8%
Formula
Percentage change = [(161 - 571) / 571] x 100
Subtract the new number by the original number
161 - 571 = -410
-410 ÷ 571 = -0.7180385288966725
-0.7180385288966725 x 100 = -71.8%