2.38% is the change from 672 to 688
Calculation steps:
[( 688 - 672 ) ÷ 672] x 100 = 2.38%
Formula
Percentage change = [(688 - 672) / 672] x 100
Subtract the new number by the original number
688 - 672 = 16
16 ÷ 672 = 0.023809523809523808
0.023809523809523808 x 100 = 2.38%