-12.92% is the change from 619 to 539
Calculation steps:
[( 539 - 619 ) ÷ 619] x 100 = -12.92%
Formula
Percentage change = [(539 - 619) / 619] x 100
Subtract the new number by the original number
539 - 619 = -80
-80 ÷ 619 = -0.12924071082390953
-0.12924071082390953 x 100 = -12.92%