-98.84% is the change from 689 to 8
Calculation steps:
[( 8 - 689 ) ÷ 689] x 100 = -98.84%
Formula
Percentage change = [(8 - 689) / 689] x 100
Subtract the new number by the original number
8 - 689 = -681
-681 ÷ 689 = -0.988388969521045
-0.988388969521045 x 100 = -98.84%