18.26% is the change from 657 to 777
Calculation steps:
[( 777 - 657 ) ÷ 657] x 100 = 18.26%
Formula
Percentage change = [(777 - 657) / 657] x 100
Subtract the new number by the original number
777 - 657 = 120
120 ÷ 657 = 0.182648401826484
0.182648401826484 x 100 = 18.26%