-10.99% is the change from 728 to 648
Calculation steps:
[( 648 - 728 ) ÷ 728] x 100 = -10.99%
Formula
Percentage change = [(648 - 728) / 728] x 100
Subtract the new number by the original number
648 - 728 = -80
-80 ÷ 728 = -0.10989010989010989
-0.10989010989010989 x 100 = -10.99%