-25.17% is the change from 580 to 434
Calculation steps:
[( 434 - 580 ) ÷ 580] x 100 = -25.17%
Formula
Percentage change = [(434 - 580) / 580] x 100
Subtract the new number by the original number
434 - 580 = -146
-146 ÷ 580 = -0.2517241379310345
-0.2517241379310345 x 100 = -25.17%