28.32% is the change from 512 to 657
Calculation steps:
[( 657 - 512 ) ÷ 512] x 100 = 28.32%
Formula
Percentage change = [(657 - 512) / 512] x 100
Subtract the new number by the original number
657 - 512 = 145
145 ÷ 512 = 0.283203125
0.283203125 x 100 = 28.32%