2.41% is the change from 664 to 680
Calculation steps:
[( 680 - 664 ) ÷ 664] x 100 = 2.41%
Formula
Percentage change = [(680 - 664) / 664] x 100
Subtract the new number by the original number
680 - 664 = 16
16 ÷ 664 = 0.024096385542168676
0.024096385542168676 x 100 = 2.41%