2.28% is the change from 791 to 809
Calculation steps:
[( 809 - 791 ) ÷ 791] x 100 = 2.28%
Formula
Percentage change = [(809 - 791) / 791] x 100
Subtract the new number by the original number
809 - 791 = 18
18 ÷ 791 = 0.022756005056890013
0.022756005056890013 x 100 = 2.28%