9.61% is the change from 645 to 707
Calculation steps:
[( 707 - 645 ) ÷ 645] x 100 = 9.61%
Formula
Percentage change = [(707 - 645) / 645] x 100
Subtract the new number by the original number
707 - 645 = 62
62 ÷ 645 = 0.09612403100775194
0.09612403100775194 x 100 = 9.61%