-22.75% is the change from 800 to 618
Calculation steps:
[( 618 - 800 ) ÷ 800] x 100 = -22.75%
Formula
Percentage change = [(618 - 800) / 800] x 100
Subtract the new number by the original number
618 - 800 = -182
-182 ÷ 800 = -0.2275
-0.2275 x 100 = -22.75%