15.53% is the change from 515 to 595
Calculation steps:
[( 595 - 515 ) ÷ 515] x 100 = 15.53%
Formula
Percentage change = [(595 - 515) / 515] x 100
Subtract the new number by the original number
595 - 515 = 80
80 ÷ 515 = 0.1553398058252427
0.1553398058252427 x 100 = 15.53%