-5.03% is the change from 457 to 434
Calculation steps:
[( 434 - 457 ) ÷ 457] x 100 = -5.03%
Formula
Percentage change = [(434 - 457) / 457] x 100
Subtract the new number by the original number
434 - 457 = -23
-23 ÷ 457 = -0.05032822757111598
-0.05032822757111598 x 100 = -5.03%