51.27% is the change from 511 to 773
Calculation steps:
[( 773 - 511 ) ÷ 511] x 100 = 51.27%
Formula
Percentage change = [(773 - 511) / 511] x 100
Subtract the new number by the original number
773 - 511 = 262
262 ÷ 511 = 0.512720156555773
0.512720156555773 x 100 = 51.27%