-6.21% is the change from 709 to 665
Calculation steps:
[( 665 - 709 ) ÷ 709] x 100 = -6.21%
Formula
Percentage change = [(665 - 709) / 709] x 100
Subtract the new number by the original number
665 - 709 = -44
-44 ÷ 709 = -0.06205923836389281
-0.06205923836389281 x 100 = -6.21%