3.06% is the change from 817 to 842
Calculation steps:
[( 842 - 817 ) ÷ 817] x 100 = 3.06%
Formula
Percentage change = [(842 - 817) / 817] x 100
Subtract the new number by the original number
842 - 817 = 25
25 ÷ 817 = 0.030599755201958383
0.030599755201958383 x 100 = 3.06%