-69.88% is the change from 571 to 172
Calculation steps:
[( 172 - 571 ) ÷ 571] x 100 = -69.88%
Formula
Percentage change = [(172 - 571) / 571] x 100
Subtract the new number by the original number
172 - 571 = -399
-399 ÷ 571 = -0.6987740805604203
-0.6987740805604203 x 100 = -69.88%