-9.79% is the change from 807 to 728
Calculation steps:
[( 728 - 807 ) ÷ 807] x 100 = -9.79%
Formula
Percentage change = [(728 - 807) / 807] x 100
Subtract the new number by the original number
728 - 807 = -79
-79 ÷ 807 = -0.09789343246592318
-0.09789343246592318 x 100 = -9.79%