-8.52% is the change from 728 to 666
Calculation steps:
[( 666 - 728 ) ÷ 728] x 100 = -8.52%
Formula
Percentage change = [(666 - 728) / 728] x 100
Subtract the new number by the original number
666 - 728 = -62
-62 ÷ 728 = -0.08516483516483517
-0.08516483516483517 x 100 = -8.52%