-23.58% is the change from 810 to 619
Calculation steps:
[( 619 - 810 ) ÷ 810] x 100 = -23.58%
Formula
Percentage change = [(619 - 810) / 810] x 100
Subtract the new number by the original number
619 - 810 = -191
-191 ÷ 810 = -0.23580246913580247
-0.23580246913580247 x 100 = -23.58%