259.2% is the change from 125 to 449
Calculation steps:
[( 449 - 125 ) ÷ 125] x 100 = 259.2%
Formula
Percentage change = [(449 - 125) / 125] x 100
Subtract the new number by the original number
449 - 125 = 324
324 ÷ 125 = 2.592
2.592 x 100 = 259.2%
Example