2.45% is the change from 612 to 627
Calculation steps:
[( 627 - 612 ) ÷ 612] x 100 = 2.45%
Formula
Percentage change = [(627 - 612) / 612] x 100
Subtract the new number by the original number
627 - 612 = 15
15 ÷ 612 = 0.024509803921568627
0.024509803921568627 x 100 = 2.45%