3.45% is the change from 493 to 510
Calculation steps:
[( 510 - 493 ) ÷ 493] x 100 = 3.45%
Formula
Percentage change = [(510 - 493) / 493] x 100
Subtract the new number by the original number
510 - 493 = 17
17 ÷ 493 = 0.034482758620689655
0.034482758620689655 x 100 = 3.45%