3.18% is the change from 817 to 843
Calculation steps:
[( 843 - 817 ) ÷ 817] x 100 = 3.18%
Formula
Percentage change = [(843 - 817) / 817] x 100
Subtract the new number by the original number
843 - 817 = 26
26 ÷ 817 = 0.03182374541003672
0.03182374541003672 x 100 = 3.18%