-44.58% is the change from 812 to 450
Calculation steps:
[( 450 - 812 ) ÷ 812] x 100 = -44.58%
Formula
Percentage change = [(450 - 812) / 812] x 100
Subtract the new number by the original number
450 - 812 = -362
-362 ÷ 812 = -0.4458128078817734
-0.4458128078817734 x 100 = -44.58%