61.91% is the change from 512 to 829
Calculation steps:
[( 829 - 512 ) ÷ 512] x 100 = 61.91%
Formula
Percentage change = [(829 - 512) / 512] x 100
Subtract the new number by the original number
829 - 512 = 317
317 ÷ 512 = 0.619140625
0.619140625 x 100 = 61.91%