-36.83% is the change from 619 to 391
Calculation steps:
[( 391 - 619 ) ÷ 619] x 100 = -36.83%
Formula
Percentage change = [(391 - 619) / 619] x 100
Subtract the new number by the original number
391 - 619 = -228
-228 ÷ 619 = -0.3683360258481422
-0.3683360258481422 x 100 = -36.83%