-1.87% is the change from 641 to 629
Calculation steps:
[( 629 - 641 ) ÷ 641] x 100 = -1.87%
Formula
Percentage change = [(629 - 641) / 641] x 100
Subtract the new number by the original number
629 - 641 = -12
-12 ÷ 641 = -0.0187207488299532
-0.0187207488299532 x 100 = -1.87%