1.26% is the change from 634 to 642
Calculation steps:
[( 642 - 634 ) ÷ 634] x 100 = 1.26%
Formula
Percentage change = [(642 - 634) / 634] x 100
Subtract the new number by the original number
642 - 634 = 8
8 ÷ 634 = 0.012618296529968454
0.012618296529968454 x 100 = 1.26%