-56.04% is the change from 571 to 251
Calculation steps:
[( 251 - 571 ) ÷ 571] x 100 = -56.04%
Formula
Percentage change = [(251 - 571) / 571] x 100
Subtract the new number by the original number
251 - 571 = -320
-320 ÷ 571 = -0.5604203152364273
-0.5604203152364273 x 100 = -56.04%