-85.52% is the change from 677 to 98
Calculation steps:
[( 98 - 677 ) ÷ 677] x 100 = -85.52%
Formula
Percentage change = [(98 - 677) / 677] x 100
Subtract the new number by the original number
98 - 677 = -579
-579 ÷ 677 = -0.8552437223042836
-0.8552437223042836 x 100 = -85.52%