2.84% is the change from 811 to 834
Calculation steps:
[( 834 - 811 ) ÷ 811] x 100 = 2.84%
Formula
Percentage change = [(834 - 811) / 811] x 100
Subtract the new number by the original number
834 - 811 = 23
23 ÷ 811 = 0.02836004932182491
0.02836004932182491 x 100 = 2.84%