3.35% is the change from 627 to 648
Calculation steps:
[( 648 - 627 ) ÷ 627] x 100 = 3.35%
Formula
Percentage change = [(648 - 627) / 627] x 100
Subtract the new number by the original number
648 - 627 = 21
21 ÷ 627 = 0.03349282296650718
0.03349282296650718 x 100 = 3.35%