38.87% is the change from 512 to 711
Calculation steps:
[( 711 - 512 ) ÷ 512] x 100 = 38.87%
Formula
Percentage change = [(711 - 512) / 512] x 100
Subtract the new number by the original number
711 - 512 = 199
199 ÷ 512 = 0.388671875
0.388671875 x 100 = 38.87%