-99.42% is the change from 687 to 4
Calculation steps:
[( 4 - 687 ) ÷ 687] x 100 = -99.42%
Formula
Percentage change = [(4 - 687) / 687] x 100
Subtract the new number by the original number
4 - 687 = -683
-683 ÷ 687 = -0.9941775836972343
-0.9941775836972343 x 100 = -99.42%