-18.13% is the change from 800 to 655
Calculation steps:
[( 655 - 800 ) ÷ 800] x 100 = -18.13%
Formula
Percentage change = [(655 - 800) / 800] x 100
Subtract the new number by the original number
655 - 800 = -145
-145 ÷ 800 = -0.18125
-0.18125 x 100 = -18.13%