3.72% is the change from 780 to 809
Calculation steps:
[( 809 - 780 ) ÷ 780] x 100 = 3.72%
Formula
Percentage change = [(809 - 780) / 780] x 100
Subtract the new number by the original number
809 - 780 = 29
29 ÷ 780 = 0.03717948717948718
0.03717948717948718 x 100 = 3.72%