-44.57% is the change from 451 to 250
Calculation steps:
[( 250 - 451 ) ÷ 451] x 100 = -44.57%
Formula
Percentage change = [(250 - 451) / 451] x 100
Subtract the new number by the original number
250 - 451 = -201
-201 ÷ 451 = -0.44567627494456763
-0.44567627494456763 x 100 = -44.57%