-85.09% is the change from 570 to 85
Calculation steps:
[( 85 - 570 ) ÷ 570] x 100 = -85.09%
Formula
Percentage change = [(85 - 570) / 570] x 100
Subtract the new number by the original number
85 - 570 = -485
-485 ÷ 570 = -0.8508771929824561
-0.8508771929824561 x 100 = -85.09%