-6.91% is the change from 709 to 660
Calculation steps:
[( 660 - 709 ) ÷ 709] x 100 = -6.91%
Formula
Percentage change = [(660 - 709) / 709] x 100
Subtract the new number by the original number
660 - 709 = -49
-49 ÷ 709 = -0.0691114245416079
-0.0691114245416079 x 100 = -6.91%