-70.18% is the change from 570 to 170
Calculation steps:
[( 170 - 570 ) ÷ 570] x 100 = -70.18%
Formula
Percentage change = [(170 - 570) / 570] x 100
Subtract the new number by the original number
170 - 570 = -400
-400 ÷ 570 = -0.7017543859649122
-0.7017543859649122 x 100 = -70.18%