-85.27% is the change from 584 to 86
Calculation steps:
[( 86 - 584 ) ÷ 584] x 100 = -85.27%
Formula
Percentage change = [(86 - 584) / 584] x 100
Subtract the new number by the original number
86 - 584 = -498
-498 ÷ 584 = -0.8527397260273972
-0.8527397260273972 x 100 = -85.27%