59.92% is the change from 519 to 830
Calculation steps:
[( 830 - 519 ) ÷ 519] x 100 = 59.92%
Formula
Percentage change = [(830 - 519) / 519] x 100
Subtract the new number by the original number
830 - 519 = 311
311 ÷ 519 = 0.5992292870905588
0.5992292870905588 x 100 = 59.92%