-85.37% is the change from 581 to 85
Calculation steps:
[( 85 - 581 ) ÷ 581] x 100 = -85.37%
Formula
Percentage change = [(85 - 581) / 581] x 100
Subtract the new number by the original number
85 - 581 = -496
-496 ÷ 581 = -0.8537005163511188
-0.8537005163511188 x 100 = -85.37%