-13.23% is the change from 839 to 728
Calculation steps:
[( 728 - 839 ) ÷ 839] x 100 = -13.23%
Formula
Percentage change = [(728 - 839) / 839] x 100
Subtract the new number by the original number
728 - 839 = -111
-111 ÷ 839 = -0.13230035756853398
-0.13230035756853398 x 100 = -13.23%