-1.28% is the change from 626 to 618
Calculation steps:
[( 618 - 626 ) ÷ 626] x 100 = -1.28%
Formula
Percentage change = [(618 - 626) / 626] x 100
Subtract the new number by the original number
618 - 626 = -8
-8 ÷ 626 = -0.012779552715654952
-0.012779552715654952 x 100 = -1.28%