12.7% is the change from 512 to 577
Calculation steps:
[( 577 - 512 ) ÷ 512] x 100 = 12.7%
Formula
Percentage change = [(577 - 512) / 512] x 100
Subtract the new number by the original number
577 - 512 = 65
65 ÷ 512 = 0.126953125
0.126953125 x 100 = 12.7%