2.55% is the change from 627 to 643
Calculation steps:
[( 643 - 627 ) ÷ 627] x 100 = 2.55%
Formula
Percentage change = [(643 - 627) / 627] x 100
Subtract the new number by the original number
643 - 627 = 16
16 ÷ 627 = 0.025518341307814992
0.025518341307814992 x 100 = 2.55%