-54.99% is the change from 571 to 257
Calculation steps:
[( 257 - 571 ) ÷ 571] x 100 = -54.99%
Formula
Percentage change = [(257 - 571) / 571] x 100
Subtract the new number by the original number
257 - 571 = -314
-314 ÷ 571 = -0.5499124343257443
-0.5499124343257443 x 100 = -54.99%