-10.68% is the change from 571 to 510
Calculation steps:
[( 510 - 571 ) ÷ 571] x 100 = -10.68%
Formula
Percentage change = [(510 - 571) / 571] x 100
Subtract the new number by the original number
510 - 571 = -61
-61 ÷ 571 = -0.10683012259194395
-0.10683012259194395 x 100 = -10.68%