-98.09% is the change from 419 to 8
Calculation steps:
[( 8 - 419 ) ÷ 419] x 100 = -98.09%
Formula
Percentage change = [(8 - 419) / 419] x 100
Subtract the new number by the original number
8 - 419 = -411
-411 ÷ 419 = -0.9809069212410502
-0.9809069212410502 x 100 = -98.09%