-44.79% is the change from 451 to 249
Calculation steps:
[( 249 - 451 ) ÷ 451] x 100 = -44.79%
Formula
Percentage change = [(249 - 451) / 451] x 100
Subtract the new number by the original number
249 - 451 = -202
-202 ÷ 451 = -0.44789356984478934
-0.44789356984478934 x 100 = -44.79%