-85.26% is the change from 570 to 84
Calculation steps:
[( 84 - 570 ) ÷ 570] x 100 = -85.26%
Formula
Percentage change = [(84 - 570) / 570] x 100
Subtract the new number by the original number
84 - 570 = -486
-486 ÷ 570 = -0.8526315789473684
-0.8526315789473684 x 100 = -85.26%