2.89% is the change from 623 to 641
Calculation steps:
[( 641 - 623 ) ÷ 623] x 100 = 2.89%
Formula
Percentage change = [(641 - 623) / 623] x 100
Subtract the new number by the original number
641 - 623 = 18
18 ÷ 623 = 0.028892455858747994
0.028892455858747994 x 100 = 2.89%