-0.32% is the change from 626 to 624
Calculation steps:
[( 624 - 626 ) ÷ 626] x 100 = -0.32%
Formula
Percentage change = [(624 - 626) / 626] x 100
Subtract the new number by the original number
624 - 626 = -2
-2 ÷ 626 = -0.003194888178913738
-0.003194888178913738 x 100 = -0.32%