-0.29% is the change from 689 to 687
Calculation steps:
[( 687 - 689 ) ÷ 689] x 100 = -0.29%
Formula
Percentage change = [(687 - 689) / 689] x 100
Subtract the new number by the original number
687 - 689 = -2
-2 ÷ 689 = -0.002902757619738752
-0.002902757619738752 x 100 = -0.29%