17.67% is the change from 515 to 606
Calculation steps:
[( 606 - 515 ) ÷ 515] x 100 = 17.67%
Formula
Percentage change = [(606 - 515) / 515] x 100
Subtract the new number by the original number
606 - 515 = 91
91 ÷ 515 = 0.1766990291262136
0.1766990291262136 x 100 = 17.67%