-26.88% is the change from 800 to 585
Calculation steps:
[( 585 - 800 ) ÷ 800] x 100 = -26.88%
Formula
Percentage change = [(585 - 800) / 800] x 100
Subtract the new number by the original number
585 - 800 = -215
-215 ÷ 800 = -0.26875
-0.26875 x 100 = -26.88%