-30.46% is the change from 453 to 315
Calculation steps:
[( 315 - 453 ) ÷ 453] x 100 = -30.46%
Formula
Percentage change = [(315 - 453) / 453] x 100
Subtract the new number by the original number
315 - 453 = -138
-138 ÷ 453 = -0.304635761589404
-0.304635761589404 x 100 = -30.46%