12.3% is the change from 512 to 575
Calculation steps:
[( 575 - 512 ) ÷ 512] x 100 = 12.3%
Formula
Percentage change = [(575 - 512) / 512] x 100
Subtract the new number by the original number
575 - 512 = 63
63 ÷ 512 = 0.123046875
0.123046875 x 100 = 12.3%