-3.24% is the change from 709 to 686
Calculation steps:
[( 686 - 709 ) ÷ 709] x 100 = -3.24%
Formula
Percentage change = [(686 - 709) / 709] x 100
Subtract the new number by the original number
686 - 709 = -23
-23 ÷ 709 = -0.03244005641748942
-0.03244005641748942 x 100 = -3.24%