-98.11% is the change from 424 to 8
Calculation steps:
[( 8 - 424 ) ÷ 424] x 100 = -98.11%
Formula
Percentage change = [(8 - 424) / 424] x 100
Subtract the new number by the original number
8 - 424 = -416
-416 ÷ 424 = -0.9811320754716981
-0.9811320754716981 x 100 = -98.11%