-26.13% is the change from 800 to 591
Calculation steps:
[( 591 - 800 ) ÷ 800] x 100 = -26.13%
Formula
Percentage change = [(591 - 800) / 800] x 100
Subtract the new number by the original number
591 - 800 = -209
-209 ÷ 800 = -0.26125
-0.26125 x 100 = -26.13%