18.27% is the change from 684 to 809
Calculation steps:
[( 809 - 684 ) ÷ 684] x 100 = 18.27%
Formula
Percentage change = [(809 - 684) / 684] x 100
Subtract the new number by the original number
809 - 684 = 125
125 ÷ 684 = 0.1827485380116959
0.1827485380116959 x 100 = 18.27%