0.49% is the change from 609 to 612
Calculation steps:
[( 612 - 609 ) ÷ 609] x 100 = 0.49%
Formula
Percentage change = [(612 - 609) / 609] x 100
Subtract the new number by the original number
612 - 609 = 3
3 ÷ 609 = 0.0049261083743842365
0.0049261083743842365 x 100 = 0.49%