-44% is the change from 450 to 252
Calculation steps:
[( 252 - 450 ) ÷ 450] x 100 = -44%
Formula
Percentage change = [(252 - 450) / 450] x 100
Subtract the new number by the original number
252 - 450 = -198
-198 ÷ 450 = -0.44
-0.44 x 100 = -44%
Example