-22.63% is the change from 800 to 619
Calculation steps:
[( 619 - 800 ) ÷ 800] x 100 = -22.63%
Formula
Percentage change = [(619 - 800) / 800] x 100
Subtract the new number by the original number
619 - 800 = -181
-181 ÷ 800 = -0.22625
-0.22625 x 100 = -22.63%