-0.74% is the change from 680 to 675
Calculation steps:
[( 675 - 680 ) ÷ 680] x 100 = -0.74%
Formula
Percentage change = [(675 - 680) / 680] x 100
Subtract the new number by the original number
675 - 680 = -5
-5 ÷ 680 = -0.007352941176470588
-0.007352941176470588 x 100 = -0.74%