2.49% is the change from 602 to 617
Calculation steps:
[( 617 - 602 ) ÷ 602] x 100 = 2.49%
Formula
Percentage change = [(617 - 602) / 602] x 100
Subtract the new number by the original number
617 - 602 = 15
15 ÷ 602 = 0.024916943521594685
0.024916943521594685 x 100 = 2.49%