1.73% is the change from 809 to 823
Calculation steps:
[( 823 - 809 ) ÷ 809] x 100 = 1.73%
Formula
Percentage change = [(823 - 809) / 809] x 100
Subtract the new number by the original number
823 - 809 = 14
14 ÷ 809 = 0.0173053152039555
0.0173053152039555 x 100 = 1.73%