-29.74% is the change from 454 to 319
Calculation steps:
[( 319 - 454 ) ÷ 454] x 100 = -29.74%
Formula
Percentage change = [(319 - 454) / 454] x 100
Subtract the new number by the original number
319 - 454 = -135
-135 ÷ 454 = -0.2973568281938326
-0.2973568281938326 x 100 = -29.74%