-85.86% is the change from 587 to 83
Calculation steps:
[( 83 - 587 ) ÷ 587] x 100 = -85.86%
Formula
Percentage change = [(83 - 587) / 587] x 100
Subtract the new number by the original number
83 - 587 = -504
-504 ÷ 587 = -0.858603066439523
-0.858603066439523 x 100 = -85.86%