30.87% is the change from 515 to 674
Calculation steps:
[( 674 - 515 ) ÷ 515] x 100 = 30.87%
Formula
Percentage change = [(674 - 515) / 515] x 100
Subtract the new number by the original number
674 - 515 = 159
159 ÷ 515 = 0.3087378640776699
0.3087378640776699 x 100 = 30.87%