38.28% is the change from 512 to 708
Calculation steps:
[( 708 - 512 ) ÷ 512] x 100 = 38.28%
Formula
Percentage change = [(708 - 512) / 512] x 100
Subtract the new number by the original number
708 - 512 = 196
196 ÷ 512 = 0.3828125
0.3828125 x 100 = 38.28%