1.49% is the change from 606 to 615
Calculation steps:
[( 615 - 606 ) ÷ 606] x 100 = 1.49%
Formula
Percentage change = [(615 - 606) / 606] x 100
Subtract the new number by the original number
615 - 606 = 9
9 ÷ 606 = 0.01485148514851485
0.01485148514851485 x 100 = 1.49%