-1.59% is the change from 628 to 618
Calculation steps:
[( 618 - 628 ) ÷ 628] x 100 = -1.59%
Formula
Percentage change = [(618 - 628) / 628] x 100
Subtract the new number by the original number
618 - 628 = -10
-10 ÷ 628 = -0.01592356687898089
-0.01592356687898089 x 100 = -1.59%