-4.62% is the change from 649 to 619
Calculation steps:
[( 619 - 649 ) ÷ 649] x 100 = -4.62%
Formula
Percentage change = [(619 - 649) / 649] x 100
Subtract the new number by the original number
619 - 649 = -30
-30 ÷ 649 = -0.046224961479198766
-0.046224961479198766 x 100 = -4.62%