-28.38% is the change from 800 to 573
Calculation steps:
[( 573 - 800 ) ÷ 800] x 100 = -28.38%
Formula
Percentage change = [(573 - 800) / 800] x 100
Subtract the new number by the original number
573 - 800 = -227
-227 ÷ 800 = -0.28375
-0.28375 x 100 = -28.38%