9.63% is the change from 644 to 706
Calculation steps:
[( 706 - 644 ) ÷ 644] x 100 = 9.63%
Formula
Percentage change = [(706 - 644) / 644] x 100
Subtract the new number by the original number
706 - 644 = 62
62 ÷ 644 = 0.09627329192546584
0.09627329192546584 x 100 = 9.63%