-98.81% is the change from 674 to 8
Calculation steps:
[( 8 - 674 ) ÷ 674] x 100 = -98.81%
Formula
Percentage change = [(8 - 674) / 674] x 100
Subtract the new number by the original number
8 - 674 = -666
-666 ÷ 674 = -0.9881305637982196
-0.9881305637982196 x 100 = -98.81%