-55.96% is the change from 570 to 251
Calculation steps:
[( 251 - 570 ) ÷ 570] x 100 = -55.96%
Formula
Percentage change = [(251 - 570) / 570] x 100
Subtract the new number by the original number
251 - 570 = -319
-319 ÷ 570 = -0.5596491228070175
-0.5596491228070175 x 100 = -55.96%