-85.35% is the change from 587 to 86
Calculation steps:
[( 86 - 587 ) ÷ 587] x 100 = -85.35%
Formula
Percentage change = [(86 - 587) / 587] x 100
Subtract the new number by the original number
86 - 587 = -501
-501 ÷ 587 = -0.8534923339011925
-0.8534923339011925 x 100 = -85.35%