-12.26% is the change from 571 to 501
Calculation steps:
[( 501 - 571 ) ÷ 571] x 100 = -12.26%
Formula
Percentage change = [(501 - 571) / 571] x 100
Subtract the new number by the original number
501 - 571 = -70
-70 ÷ 571 = -0.12259194395796848
-0.12259194395796848 x 100 = -12.26%