-99.3% is the change from 430 to 3
Calculation steps:
[( 3 - 430 ) ÷ 430] x 100 = -99.3%
Formula
Percentage change = [(3 - 430) / 430] x 100
Subtract the new number by the original number
3 - 430 = -427
-427 ÷ 430 = -0.9930232558139535
-0.9930232558139535 x 100 = -99.3%