2.71% is the change from 812 to 834
Calculation steps:
[( 834 - 812 ) ÷ 812] x 100 = 2.71%
Formula
Percentage change = [(834 - 812) / 812] x 100
Subtract the new number by the original number
834 - 812 = 22
22 ÷ 812 = 0.027093596059113302
0.027093596059113302 x 100 = 2.71%