6.39% is the change from 642 to 683
Calculation steps:
[( 683 - 642 ) ÷ 642] x 100 = 6.39%
Formula
Percentage change = [(683 - 642) / 642] x 100
Subtract the new number by the original number
683 - 642 = 41
41 ÷ 642 = 0.06386292834890965
0.06386292834890965 x 100 = 6.39%