-5.78% is the change from 709 to 668
Calculation steps:
[( 668 - 709 ) ÷ 709] x 100 = -5.78%
Formula
Percentage change = [(668 - 709) / 709] x 100
Subtract the new number by the original number
668 - 709 = -41
-41 ÷ 709 = -0.05782792665726375
-0.05782792665726375 x 100 = -5.78%