2.68% is the change from 671 to 689
Calculation steps:
[( 689 - 671 ) ÷ 671] x 100 = 2.68%
Formula
Percentage change = [(689 - 671) / 671] x 100
Subtract the new number by the original number
689 - 671 = 18
18 ÷ 671 = 0.026825633383010434
0.026825633383010434 x 100 = 2.68%