-45.63% is the change from 800 to 435
Calculation steps:
[( 435 - 800 ) ÷ 800] x 100 = -45.63%
Formula
Percentage change = [(435 - 800) / 800] x 100
Subtract the new number by the original number
435 - 800 = -365
-365 ÷ 800 = -0.45625
-0.45625 x 100 = -45.63%