-7.73% is the change from 724 to 668
Calculation steps:
[( 668 - 724 ) ÷ 724] x 100 = -7.73%
Formula
Percentage change = [(668 - 724) / 724] x 100
Subtract the new number by the original number
668 - 724 = -56
-56 ÷ 724 = -0.07734806629834254
-0.07734806629834254 x 100 = -7.73%