2.42% is the change from 619 to 634
Calculation steps:
[( 634 - 619 ) ÷ 619] x 100 = 2.42%
Formula
Percentage change = [(634 - 619) / 619] x 100
Subtract the new number by the original number
634 - 619 = 15
15 ÷ 619 = 0.024232633279483037
0.024232633279483037 x 100 = 2.42%