-71.4% is the change from 570 to 163
Calculation steps:
[( 163 - 570 ) ÷ 570] x 100 = -71.4%
Formula
Percentage change = [(163 - 570) / 570] x 100
Subtract the new number by the original number
163 - 570 = -407
-407 ÷ 570 = -0.7140350877192982
-0.7140350877192982 x 100 = -71.4%