-33.13% is the change from 800 to 535
Calculation steps:
[( 535 - 800 ) ÷ 800] x 100 = -33.13%
Formula
Percentage change = [(535 - 800) / 800] x 100
Subtract the new number by the original number
535 - 800 = -265
-265 ÷ 800 = -0.33125
-0.33125 x 100 = -33.13%