1.34% is the change from 671 to 680
Calculation steps:
[( 680 - 671 ) ÷ 671] x 100 = 1.34%
Formula
Percentage change = [(680 - 671) / 671] x 100
Subtract the new number by the original number
680 - 671 = 9
9 ÷ 671 = 0.013412816691505217
0.013412816691505217 x 100 = 1.34%