2.72% is the change from 662 to 680
Calculation steps:
[( 680 - 662 ) ÷ 662] x 100 = 2.72%
Formula
Percentage change = [(680 - 662) / 662] x 100
Subtract the new number by the original number
680 - 662 = 18
18 ÷ 662 = 0.027190332326283987
0.027190332326283987 x 100 = 2.72%