54.79% is the change from 511 to 791
Calculation steps:
[( 791 - 511 ) ÷ 511] x 100 = 54.79%
Formula
Percentage change = [(791 - 511) / 511] x 100
Subtract the new number by the original number
791 - 511 = 280
280 ÷ 511 = 0.547945205479452
0.547945205479452 x 100 = 54.79%