15.51% is the change from 664 to 767
Calculation steps:
[( 767 - 664 ) ÷ 664] x 100 = 15.51%
Formula
Percentage change = [(767 - 664) / 664] x 100
Subtract the new number by the original number
767 - 664 = 103
103 ÷ 664 = 0.15512048192771086
0.15512048192771086 x 100 = 15.51%