76.17% is the change from 512 to 902
Calculation steps:
[( 902 - 512 ) ÷ 512] x 100 = 76.17%
Formula
Percentage change = [(902 - 512) / 512] x 100
Subtract the new number by the original number
902 - 512 = 390
390 ÷ 512 = 0.76171875
0.76171875 x 100 = 76.17%