8.61% is the change from 639 to 694
Calculation steps:
[( 694 - 639 ) ÷ 639] x 100 = 8.61%
Formula
Percentage change = [(694 - 639) / 639] x 100
Subtract the new number by the original number
694 - 639 = 55
55 ÷ 639 = 0.08607198748043818
0.08607198748043818 x 100 = 8.61%