-23.44% is the change from 819 to 627
Calculation steps:
[( 627 - 819 ) ÷ 819] x 100 = -23.44%
Formula
Percentage change = [(627 - 819) / 819] x 100
Subtract the new number by the original number
627 - 819 = -192
-192 ÷ 819 = -0.23443223443223443
-0.23443223443223443 x 100 = -23.44%