-44.35% is the change from 451 to 251
Calculation steps:
[( 251 - 451 ) ÷ 451] x 100 = -44.35%
Formula
Percentage change = [(251 - 451) / 451] x 100
Subtract the new number by the original number
251 - 451 = -200
-200 ÷ 451 = -0.4434589800443459
-0.4434589800443459 x 100 = -44.35%