-11.11% is the change from 819 to 728
Calculation steps:
[( 728 - 819 ) ÷ 819] x 100 = -11.11%
Formula
Percentage change = [(728 - 819) / 819] x 100
Subtract the new number by the original number
728 - 819 = -91
-91 ÷ 819 = -0.1111111111111111
-0.1111111111111111 x 100 = -11.11%