-30.88% is the change from 570 to 394
Calculation steps:
[( 394 - 570 ) ÷ 570] x 100 = -30.88%
Formula
Percentage change = [(394 - 570) / 570] x 100
Subtract the new number by the original number
394 - 570 = -176
-176 ÷ 570 = -0.3087719298245614
-0.3087719298245614 x 100 = -30.88%