-27.6% is the change from 855 to 619
Calculation steps:
[( 619 - 855 ) ÷ 855] x 100 = -27.6%
Formula
Percentage change = [(619 - 855) / 855] x 100
Subtract the new number by the original number
619 - 855 = -236
-236 ÷ 855 = -0.2760233918128655
-0.2760233918128655 x 100 = -27.6%