315.2% is the change from 125 to 519
Calculation steps:
[( 519 - 125 ) ÷ 125] x 100 = 315.2%
Formula
Percentage change = [(519 - 125) / 125] x 100
Subtract the new number by the original number
519 - 125 = 394
394 ÷ 125 = 3.152
3.152 x 100 = 315.2%
Example