-0.74% is the change from 673 to 668
Calculation steps:
[( 668 - 673 ) ÷ 673] x 100 = -0.74%
Formula
Percentage change = [(668 - 673) / 673] x 100
Subtract the new number by the original number
668 - 673 = -5
-5 ÷ 673 = -0.007429420505200594
-0.007429420505200594 x 100 = -0.74%