65.9% is the change from 519 to 861
Calculation steps:
[( 861 - 519 ) ÷ 519] x 100 = 65.9%
Formula
Percentage change = [(861 - 519) / 519] x 100
Subtract the new number by the original number
861 - 519 = 342
342 ÷ 519 = 0.6589595375722543
0.6589595375722543 x 100 = 65.9%