-45.2% is the change from 458 to 251
Calculation steps:
[( 251 - 458 ) ÷ 458] x 100 = -45.2%
Formula
Percentage change = [(251 - 458) / 458] x 100
Subtract the new number by the original number
251 - 458 = -207
-207 ÷ 458 = -0.4519650655021834
-0.4519650655021834 x 100 = -45.2%