-98.69% is the change from 613 to 8
Calculation steps:
[( 8 - 613 ) ÷ 613] x 100 = -98.69%
Formula
Percentage change = [(8 - 613) / 613] x 100
Subtract the new number by the original number
8 - 613 = -605
-605 ÷ 613 = -0.9869494290375204
-0.9869494290375204 x 100 = -98.69%