-44.96% is the change from 456 to 251
Calculation steps:
[( 251 - 456 ) ÷ 456] x 100 = -44.96%
Formula
Percentage change = [(251 - 456) / 456] x 100
Subtract the new number by the original number
251 - 456 = -205
-205 ÷ 456 = -0.44956140350877194
-0.44956140350877194 x 100 = -44.96%