-83.68% is the change from 570 to 93
Calculation steps:
[( 93 - 570 ) ÷ 570] x 100 = -83.68%
Formula
Percentage change = [(93 - 570) / 570] x 100
Subtract the new number by the original number
93 - 570 = -477
-477 ÷ 570 = -0.8368421052631579
-0.8368421052631579 x 100 = -83.68%