-94.72% is the change from 587 to 31
Calculation steps:
[( 31 - 587 ) ÷ 587] x 100 = -94.72%
Formula
Percentage change = [(31 - 587) / 587] x 100
Subtract the new number by the original number
31 - 587 = -556
-556 ÷ 587 = -0.9471890971039182
-0.9471890971039182 x 100 = -94.72%