27.59% is the change from 609 to 777
Calculation steps:
[( 777 - 609 ) ÷ 609] x 100 = 27.59%
Formula
Percentage change = [(777 - 609) / 609] x 100
Subtract the new number by the original number
777 - 609 = 168
168 ÷ 609 = 0.27586206896551724
0.27586206896551724 x 100 = 27.59%