18.6% is the change from 656 to 778
Calculation steps:
[( 778 - 656 ) ÷ 656] x 100 = 18.6%
Formula
Percentage change = [(778 - 656) / 656] x 100
Subtract the new number by the original number
778 - 656 = 122
122 ÷ 656 = 0.18597560975609756
0.18597560975609756 x 100 = 18.6%