-43.25% is the change from 800 to 454
Calculation steps:
[( 454 - 800 ) ÷ 800] x 100 = -43.25%
Formula
Percentage change = [(454 - 800) / 800] x 100
Subtract the new number by the original number
454 - 800 = -346
-346 ÷ 800 = -0.4325
-0.4325 x 100 = -43.25%