17.17% is the change from 664 to 778
Calculation steps:
[( 778 - 664 ) ÷ 664] x 100 = 17.17%
Formula
Percentage change = [(778 - 664) / 664] x 100
Subtract the new number by the original number
778 - 664 = 114
114 ÷ 664 = 0.1716867469879518
0.1716867469879518 x 100 = 17.17%