-99.07% is the change from 430 to 4
Calculation steps:
[( 4 - 430 ) ÷ 430] x 100 = -99.07%
Formula
Percentage change = [(4 - 430) / 430] x 100
Subtract the new number by the original number
4 - 430 = -426
-426 ÷ 430 = -0.9906976744186047
-0.9906976744186047 x 100 = -99.07%