3.13% is the change from 512 to 528
Calculation steps:
[( 528 - 512 ) ÷ 512] x 100 = 3.13%
Formula
Percentage change = [(528 - 512) / 512] x 100
Subtract the new number by the original number
528 - 512 = 16
16 ÷ 512 = 0.03125
0.03125 x 100 = 3.13%
Example