10.63% is the change from 640 to 708
Calculation steps:
[( 708 - 640 ) ÷ 640] x 100 = 10.63%
Formula
Percentage change = [(708 - 640) / 640] x 100
Subtract the new number by the original number
708 - 640 = 68
68 ÷ 640 = 0.10625
0.10625 x 100 = 10.63%