-98.54% is the change from 616 to 9
Calculation steps:
[( 9 - 616 ) ÷ 616] x 100 = -98.54%
Formula
Percentage change = [(9 - 616) / 616] x 100
Subtract the new number by the original number
9 - 616 = -607
-607 ÷ 616 = -0.9853896103896104
-0.9853896103896104 x 100 = -98.54%