-34.08% is the change from 939 to 619
Calculation steps:
[( 619 - 939 ) ÷ 939] x 100 = -34.08%
Formula
Percentage change = [(619 - 939) / 939] x 100
Subtract the new number by the original number
619 - 939 = -320
-320 ÷ 939 = -0.3407880724174654
-0.3407880724174654 x 100 = -34.08%