58.79% is the change from 512 to 813
Calculation steps:
[( 813 - 512 ) ÷ 512] x 100 = 58.79%
Formula
Percentage change = [(813 - 512) / 512] x 100
Subtract the new number by the original number
813 - 512 = 301
301 ÷ 512 = 0.587890625
0.587890625 x 100 = 58.79%