3.32% is the change from 662 to 684
Calculation steps:
[( 684 - 662 ) ÷ 662] x 100 = 3.32%
Formula
Percentage change = [(684 - 662) / 662] x 100
Subtract the new number by the original number
684 - 662 = 22
22 ÷ 662 = 0.03323262839879154
0.03323262839879154 x 100 = 3.32%