-32.56% is the change from 430 to 290
Calculation steps:
[( 290 - 430 ) ÷ 430] x 100 = -32.56%
Formula
Percentage change = [(290 - 430) / 430] x 100
Subtract the new number by the original number
290 - 430 = -140
-140 ÷ 430 = -0.32558139534883723
-0.32558139534883723 x 100 = -32.56%