-6.9% is the change from 696 to 648
Calculation steps:
[( 648 - 696 ) ÷ 696] x 100 = -6.9%
Formula
Percentage change = [(648 - 696) / 696] x 100
Subtract the new number by the original number
648 - 696 = -48
-48 ÷ 696 = -0.06896551724137931
-0.06896551724137931 x 100 = -6.9%