18.45% is the change from 515 to 610
Calculation steps:
[( 610 - 515 ) ÷ 515] x 100 = 18.45%
Formula
Percentage change = [(610 - 515) / 515] x 100
Subtract the new number by the original number
610 - 515 = 95
95 ÷ 515 = 0.18446601941747573
0.18446601941747573 x 100 = 18.45%