-0.8% is the change from 623 to 618
Calculation steps:
[( 618 - 623 ) ÷ 623] x 100 = -0.8%
Formula
Percentage change = [(618 - 623) / 623] x 100
Subtract the new number by the original number
618 - 623 = -5
-5 ÷ 623 = -0.008025682182985553
-0.008025682182985553 x 100 = -0.8%