-85.57% is the change from 596 to 86
Calculation steps:
[( 86 - 596 ) ÷ 596] x 100 = -85.57%
Formula
Percentage change = [(86 - 596) / 596] x 100
Subtract the new number by the original number
86 - 596 = -510
-510 ÷ 596 = -0.8557046979865772
-0.8557046979865772 x 100 = -85.57%