2.23% is the change from 673 to 688
Calculation steps:
[( 688 - 673 ) ÷ 673] x 100 = 2.23%
Formula
Percentage change = [(688 - 673) / 673] x 100
Subtract the new number by the original number
688 - 673 = 15
15 ÷ 673 = 0.022288261515601784
0.022288261515601784 x 100 = 2.23%