27.91% is the change from 609 to 779
Calculation steps:
[( 779 - 609 ) ÷ 609] x 100 = 27.91%
Formula
Percentage change = [(779 - 609) / 609] x 100
Subtract the new number by the original number
779 - 609 = 170
170 ÷ 609 = 0.2791461412151067
0.2791461412151067 x 100 = 27.91%