-43.49% is the change from 453 to 256
Calculation steps:
[( 256 - 453 ) ÷ 453] x 100 = -43.49%
Formula
Percentage change = [(256 - 453) / 453] x 100
Subtract the new number by the original number
256 - 453 = -197
-197 ÷ 453 = -0.434878587196468
-0.434878587196468 x 100 = -43.49%