-11.91% is the change from 571 to 503
Calculation steps:
[( 503 - 571 ) ÷ 571] x 100 = -11.91%
Formula
Percentage change = [(503 - 571) / 571] x 100
Subtract the new number by the original number
503 - 571 = -68
-68 ÷ 571 = -0.1190893169877408
-0.1190893169877408 x 100 = -11.91%