15.07% is the change from 511 to 588
Calculation steps:
[( 588 - 511 ) ÷ 511] x 100 = 15.07%
Formula
Percentage change = [(588 - 511) / 511] x 100
Subtract the new number by the original number
588 - 511 = 77
77 ÷ 511 = 0.1506849315068493
0.1506849315068493 x 100 = 15.07%