343.2% is the change from 125 to 554
Calculation steps:
[( 554 - 125 ) ÷ 125] x 100 = 343.2%
Formula
Percentage change = [(554 - 125) / 125] x 100
Subtract the new number by the original number
554 - 125 = 429
429 ÷ 125 = 3.432
3.432 x 100 = 343.2%
Example