9.08% is the change from 639 to 697
Calculation steps:
[( 697 - 639 ) ÷ 639] x 100 = 9.08%
Formula
Percentage change = [(697 - 639) / 639] x 100
Subtract the new number by the original number
697 - 639 = 58
58 ÷ 639 = 0.09076682316118936
0.09076682316118936 x 100 = 9.08%