5.83% is the change from 515 to 545
Calculation steps:
[( 545 - 515 ) ÷ 515] x 100 = 5.83%
Formula
Percentage change = [(545 - 515) / 515] x 100
Subtract the new number by the original number
545 - 515 = 30
30 ÷ 515 = 0.05825242718446602
0.05825242718446602 x 100 = 5.83%