-7.83% is the change from 728 to 671
Calculation steps:
[( 671 - 728 ) ÷ 728] x 100 = -7.83%
Formula
Percentage change = [(671 - 728) / 728] x 100
Subtract the new number by the original number
671 - 728 = -57
-57 ÷ 728 = -0.0782967032967033
-0.0782967032967033 x 100 = -7.83%