3.92% is the change from 664 to 690
Calculation steps:
[( 690 - 664 ) ÷ 664] x 100 = 3.92%
Formula
Percentage change = [(690 - 664) / 664] x 100
Subtract the new number by the original number
690 - 664 = 26
26 ÷ 664 = 0.0391566265060241
0.0391566265060241 x 100 = 3.92%