-13.91% is the change from 453 to 390
Calculation steps:
[( 390 - 453 ) ÷ 453] x 100 = -13.91%
Formula
Percentage change = [(390 - 453) / 453] x 100
Subtract the new number by the original number
390 - 453 = -63
-63 ÷ 453 = -0.1390728476821192
-0.1390728476821192 x 100 = -13.91%