-51.16% is the change from 430 to 210
Calculation steps:
[( 210 - 430 ) ÷ 430] x 100 = -51.16%
Formula
Percentage change = [(210 - 430) / 430] x 100
Subtract the new number by the original number
210 - 430 = -220
-220 ÷ 430 = -0.5116279069767442
-0.5116279069767442 x 100 = -51.16%