-99.13% is the change from 687 to 6
Calculation steps:
[( 6 - 687 ) ÷ 687] x 100 = -99.13%
Formula
Percentage change = [(6 - 687) / 687] x 100
Subtract the new number by the original number
6 - 687 = -681
-681 ÷ 687 = -0.9912663755458515
-0.9912663755458515 x 100 = -99.13%