1.65% is the change from 605 to 615
Calculation steps:
[( 615 - 605 ) ÷ 605] x 100 = 1.65%
Formula
Percentage change = [(615 - 605) / 605] x 100
Subtract the new number by the original number
615 - 605 = 10
10 ÷ 605 = 0.01652892561983471
0.01652892561983471 x 100 = 1.65%