1.09% is the change from 642 to 649
Calculation steps:
[( 649 - 642 ) ÷ 642] x 100 = 1.09%
Formula
Percentage change = [(649 - 642) / 642] x 100
Subtract the new number by the original number
649 - 642 = 7
7 ÷ 642 = 0.010903426791277258
0.010903426791277258 x 100 = 1.09%