39.06% is the change from 512 to 712
Calculation steps:
[( 712 - 512 ) ÷ 512] x 100 = 39.06%
Formula
Percentage change = [(712 - 512) / 512] x 100
Subtract the new number by the original number
712 - 512 = 200
200 ÷ 512 = 0.390625
0.390625 x 100 = 39.06%