3.82% is the change from 811 to 842
Calculation steps:
[( 842 - 811 ) ÷ 811] x 100 = 3.82%
Formula
Percentage change = [(842 - 811) / 811] x 100
Subtract the new number by the original number
842 - 811 = 31
31 ÷ 811 = 0.03822441430332922
0.03822441430332922 x 100 = 3.82%