-98.82% is the change from 677 to 8
Calculation steps:
[( 8 - 677 ) ÷ 677] x 100 = -98.82%
Formula
Percentage change = [(8 - 677) / 677] x 100
Subtract the new number by the original number
8 - 677 = -669
-669 ÷ 677 = -0.9881831610044313
-0.9881831610044313 x 100 = -98.82%