49.71% is the change from 511 to 765
Calculation steps:
[( 765 - 511 ) ÷ 511] x 100 = 49.71%
Formula
Percentage change = [(765 - 511) / 511] x 100
Subtract the new number by the original number
765 - 511 = 254
254 ÷ 511 = 0.49706457925636005
0.49706457925636005 x 100 = 49.71%