-98.39% is the change from 496 to 8
Calculation steps:
[( 8 - 496 ) ÷ 496] x 100 = -98.39%
Formula
Percentage change = [(8 - 496) / 496] x 100
Subtract the new number by the original number
8 - 496 = -488
-488 ÷ 496 = -0.9838709677419355
-0.9838709677419355 x 100 = -98.39%