-1.25% is the change from 641 to 633
Calculation steps:
[( 633 - 641 ) ÷ 641] x 100 = -1.25%
Formula
Percentage change = [(633 - 641) / 641] x 100
Subtract the new number by the original number
633 - 641 = -8
-8 ÷ 641 = -0.0124804992199688
-0.0124804992199688 x 100 = -1.25%