-31.72% is the change from 454 to 310
Calculation steps:
[( 310 - 454 ) ÷ 454] x 100 = -31.72%
Formula
Percentage change = [(310 - 454) / 454] x 100
Subtract the new number by the original number
310 - 454 = -144
-144 ÷ 454 = -0.31718061674008813
-0.31718061674008813 x 100 = -31.72%