1.56% is the change from 512 to 520
Calculation steps:
[( 520 - 512 ) ÷ 512] x 100 = 1.56%
Formula
Percentage change = [(520 - 512) / 512] x 100
Subtract the new number by the original number
520 - 512 = 8
8 ÷ 512 = 0.015625
0.015625 x 100 = 1.56%
Example