-95.49% is the change from 687 to 31
Calculation steps:
[( 31 - 687 ) ÷ 687] x 100 = -95.49%
Formula
Percentage change = [(31 - 687) / 687] x 100
Subtract the new number by the original number
31 - 687 = -656
-656 ÷ 687 = -0.9548762736535662
-0.9548762736535662 x 100 = -95.49%