18.37% is the change from 664 to 786
Calculation steps:
[( 786 - 664 ) ÷ 664] x 100 = 18.37%
Formula
Percentage change = [(786 - 664) / 664] x 100
Subtract the new number by the original number
786 - 664 = 122
122 ÷ 664 = 0.18373493975903615
0.18373493975903615 x 100 = 18.37%