-97.21% is the change from 430 to 12
Calculation steps:
[( 12 - 430 ) ÷ 430] x 100 = -97.21%
Formula
Percentage change = [(12 - 430) / 430] x 100
Subtract the new number by the original number
12 - 430 = -418
-418 ÷ 430 = -0.9720930232558139
-0.9720930232558139 x 100 = -97.21%