28.31% is the change from 657 to 843
Calculation steps:
[( 843 - 657 ) ÷ 657] x 100 = 28.31%
Formula
Percentage change = [(843 - 657) / 657] x 100
Subtract the new number by the original number
843 - 657 = 186
186 ÷ 657 = 0.2831050228310502
0.2831050228310502 x 100 = 28.31%