17.56% is the change from 655 to 770
Calculation steps:
[( 770 - 655 ) ÷ 655] x 100 = 17.56%
Formula
Percentage change = [(770 - 655) / 655] x 100
Subtract the new number by the original number
770 - 655 = 115
115 ÷ 655 = 0.17557251908396945
0.17557251908396945 x 100 = 17.56%