3.15% is the change from 604 to 623
Calculation steps:
[( 623 - 604 ) ÷ 604] x 100 = 3.15%
Formula
Percentage change = [(623 - 604) / 604] x 100
Subtract the new number by the original number
623 - 604 = 19
19 ÷ 604 = 0.03145695364238411
0.03145695364238411 x 100 = 3.15%