7.45% is the change from 671 to 721
Calculation steps:
[( 721 - 671 ) ÷ 671] x 100 = 7.45%
Formula
Percentage change = [(721 - 671) / 671] x 100
Subtract the new number by the original number
721 - 671 = 50
50 ÷ 671 = 0.07451564828614009
0.07451564828614009 x 100 = 7.45%