-44.09% is the change from 812 to 454
Calculation steps:
[( 454 - 812 ) ÷ 812] x 100 = -44.09%
Formula
Percentage change = [(454 - 812) / 812] x 100
Subtract the new number by the original number
454 - 812 = -358
-358 ÷ 812 = -0.4408866995073892
-0.4408866995073892 x 100 = -44.09%