3.88% is the change from 619 to 643
Calculation steps:
[( 643 - 619 ) ÷ 619] x 100 = 3.88%
Formula
Percentage change = [(643 - 619) / 619] x 100
Subtract the new number by the original number
643 - 619 = 24
24 ÷ 619 = 0.03877221324717286
0.03877221324717286 x 100 = 3.88%