-1.29% is the change from 619 to 611
Calculation steps:
[( 611 - 619 ) ÷ 619] x 100 = -1.29%
Formula
Percentage change = [(611 - 619) / 619] x 100
Subtract the new number by the original number
611 - 619 = -8
-8 ÷ 619 = -0.012924071082390954
-0.012924071082390954 x 100 = -1.29%