-1.21% is the change from 578 to 571
Calculation steps:
[( 571 - 578 ) ÷ 578] x 100 = -1.21%
Formula
Percentage change = [(571 - 578) / 578] x 100
Subtract the new number by the original number
571 - 578 = -7
-7 ÷ 578 = -0.012110726643598616
-0.012110726643598616 x 100 = -1.21%