318.4% is the change from 125 to 523
Calculation steps:
[( 523 - 125 ) ÷ 125] x 100 = 318.4%
Formula
Percentage change = [(523 - 125) / 125] x 100
Subtract the new number by the original number
523 - 125 = 398
398 ÷ 125 = 3.184
3.184 x 100 = 318.4%
Example