-11.15% is the change from 619 to 550
Calculation steps:
[( 550 - 619 ) ÷ 619] x 100 = -11.15%
Formula
Percentage change = [(550 - 619) / 619] x 100
Subtract the new number by the original number
550 - 619 = -69
-69 ÷ 619 = -0.11147011308562198
-0.11147011308562198 x 100 = -11.15%