-8.71% is the change from 723 to 660
Calculation steps:
[( 660 - 723 ) ÷ 723] x 100 = -8.71%
Formula
Percentage change = [(660 - 723) / 723] x 100
Subtract the new number by the original number
660 - 723 = -63
-63 ÷ 723 = -0.08713692946058091
-0.08713692946058091 x 100 = -8.71%