1.11% is the change from 811 to 820
Calculation steps:
[( 820 - 811 ) ÷ 811] x 100 = 1.11%
Formula
Percentage change = [(820 - 811) / 811] x 100
Subtract the new number by the original number
820 - 811 = 9
9 ÷ 811 = 0.011097410604192354
0.011097410604192354 x 100 = 1.11%