6.02% is the change from 515 to 546
Calculation steps:
[( 546 - 515 ) ÷ 515] x 100 = 6.02%
Formula
Percentage change = [(546 - 515) / 515] x 100
Subtract the new number by the original number
546 - 515 = 31
31 ÷ 515 = 0.06019417475728155
0.06019417475728155 x 100 = 6.02%