-3.23% is the change from 619 to 599
Calculation steps:
[( 599 - 619 ) ÷ 619] x 100 = -3.23%
Formula
Percentage change = [(599 - 619) / 619] x 100
Subtract the new number by the original number
599 - 619 = -20
-20 ÷ 619 = -0.03231017770597738
-0.03231017770597738 x 100 = -3.23%