-10.23% is the change from 811 to 728
Calculation steps:
[( 728 - 811 ) ÷ 811] x 100 = -10.23%
Formula
Percentage change = [(728 - 811) / 811] x 100
Subtract the new number by the original number
728 - 811 = -83
-83 ÷ 811 = -0.10234278668310727
-0.10234278668310727 x 100 = -10.23%