-1.26% is the change from 634 to 626
Calculation steps:
[( 626 - 634 ) ÷ 634] x 100 = -1.26%
Formula
Percentage change = [(626 - 634) / 634] x 100
Subtract the new number by the original number
626 - 634 = -8
-8 ÷ 634 = -0.012618296529968454
-0.012618296529968454 x 100 = -1.26%