15.8% is the change from 728 to 843
Calculation steps:
[( 843 - 728 ) ÷ 728] x 100 = 15.8%
Formula
Percentage change = [(843 - 728) / 728] x 100
Subtract the new number by the original number
843 - 728 = 115
115 ÷ 728 = 0.15796703296703296
0.15796703296703296 x 100 = 15.8%