6.86% is the change from 510 to 545
Calculation steps:
[( 545 - 510 ) ÷ 510] x 100 = 6.86%
Formula
Percentage change = [(545 - 510) / 510] x 100
Subtract the new number by the original number
545 - 510 = 35
35 ÷ 510 = 0.06862745098039216
0.06862745098039216 x 100 = 6.86%