-90.83% is the change from 687 to 63
Calculation steps:
[( 63 - 687 ) ÷ 687] x 100 = -90.83%
Formula
Percentage change = [(63 - 687) / 687] x 100
Subtract the new number by the original number
63 - 687 = -624
-624 ÷ 687 = -0.9082969432314411
-0.9082969432314411 x 100 = -90.83%