4225% is the change from 12 to 519
Calculation steps:
[( 519 - 12 ) ÷ 12] x 100 = 4225%
Formula
Percentage change = [(519 - 12) / 12] x 100
Subtract the new number by the original number
519 - 12 = 507
507 ÷ 12 = 42.25
42.25 x 100 = 4225%
Example