3.24% is the change from 680 to 702
Calculation steps:
[( 702 - 680 ) ÷ 680] x 100 = 3.24%
Formula
Percentage change = [(702 - 680) / 680] x 100
Subtract the new number by the original number
702 - 680 = 22
22 ÷ 680 = 0.03235294117647059
0.03235294117647059 x 100 = 3.24%