-2.52% is the change from 635 to 619
Calculation steps:
[( 619 - 635 ) ÷ 635] x 100 = -2.52%
Formula
Percentage change = [(619 - 635) / 635] x 100
Subtract the new number by the original number
619 - 635 = -16
-16 ÷ 635 = -0.025196850393700787
-0.025196850393700787 x 100 = -2.52%