1.09% is the change from 822 to 831
Calculation steps:
[( 831 - 822 ) ÷ 822] x 100 = 1.09%
Formula
Percentage change = [(831 - 822) / 822] x 100
Subtract the new number by the original number
831 - 822 = 9
9 ÷ 822 = 0.010948905109489052
0.010948905109489052 x 100 = 1.09%