30.2% is the change from 510 to 664
Calculation steps:
[( 664 - 510 ) ÷ 510] x 100 = 30.2%
Formula
Percentage change = [(664 - 510) / 510] x 100
Subtract the new number by the original number
664 - 510 = 154
154 ÷ 510 = 0.30196078431372547
0.30196078431372547 x 100 = 30.2%