69.28% is the change from 511 to 865
Calculation steps:
[( 865 - 511 ) ÷ 511] x 100 = 69.28%
Formula
Percentage change = [(865 - 511) / 511] x 100
Subtract the new number by the original number
865 - 511 = 354
354 ÷ 511 = 0.6927592954990215
0.6927592954990215 x 100 = 69.28%