298.4% is the change from 125 to 498
Calculation steps:
[( 498 - 125 ) ÷ 125] x 100 = 298.4%
Formula
Percentage change = [(498 - 125) / 125] x 100
Subtract the new number by the original number
498 - 125 = 373
373 ÷ 125 = 2.984
2.984 x 100 = 298.4%
Example