31.02% is the change from 519 to 680
Calculation steps:
[( 680 - 519 ) ÷ 519] x 100 = 31.02%
Formula
Percentage change = [(680 - 519) / 519] x 100
Subtract the new number by the original number
680 - 519 = 161
161 ÷ 519 = 0.31021194605009633
0.31021194605009633 x 100 = 31.02%