0.12% is the change from 809 to 810
Calculation steps:
[( 810 - 809 ) ÷ 809] x 100 = 0.12%
Formula
Percentage change = [(810 - 809) / 809] x 100
Subtract the new number by the original number
810 - 809 = 1
1 ÷ 809 = 0.0012360939431396785
0.0012360939431396785 x 100 = 0.12%