-98.68% is the change from 605 to 8
Calculation steps:
[( 8 - 605 ) ÷ 605] x 100 = -98.68%
Formula
Percentage change = [(8 - 605) / 605] x 100
Subtract the new number by the original number
8 - 605 = -597
-597 ÷ 605 = -0.9867768595041322
-0.9867768595041322 x 100 = -98.68%