10.16% is the change from 640 to 705
Calculation steps:
[( 705 - 640 ) ÷ 640] x 100 = 10.16%
Formula
Percentage change = [(705 - 640) / 640] x 100
Subtract the new number by the original number
705 - 640 = 65
65 ÷ 640 = 0.1015625
0.1015625 x 100 = 10.16%