17.38% is the change from 656 to 770
Calculation steps:
[( 770 - 656 ) ÷ 656] x 100 = 17.38%
Formula
Percentage change = [(770 - 656) / 656] x 100
Subtract the new number by the original number
770 - 656 = 114
114 ÷ 656 = 0.17378048780487804
0.17378048780487804 x 100 = 17.38%