0.25% is the change from 809 to 811
Calculation steps:
[( 811 - 809 ) ÷ 809] x 100 = 0.25%
Formula
Percentage change = [(811 - 809) / 809] x 100
Subtract the new number by the original number
811 - 809 = 2
2 ÷ 809 = 0.002472187886279357
0.002472187886279357 x 100 = 0.25%