4.93% is the change from 811 to 851
Calculation steps:
[( 851 - 811 ) ÷ 811] x 100 = 4.93%
Formula
Percentage change = [(851 - 811) / 811] x 100
Subtract the new number by the original number
851 - 811 = 40
40 ÷ 811 = 0.04932182490752158
0.04932182490752158 x 100 = 4.93%