-45.03% is the change from 453 to 249
Calculation steps:
[( 249 - 453 ) ÷ 453] x 100 = -45.03%
Formula
Percentage change = [(249 - 453) / 453] x 100
Subtract the new number by the original number
249 - 453 = -204
-204 ÷ 453 = -0.4503311258278146
-0.4503311258278146 x 100 = -45.03%