-76.37% is the change from 419 to 99
Calculation steps:
[( 99 - 419 ) ÷ 419] x 100 = -76.37%
Formula
Percentage change = [(99 - 419) / 419] x 100
Subtract the new number by the original number
99 - 419 = -320
-320 ÷ 419 = -0.7637231503579952
-0.7637231503579952 x 100 = -76.37%