504% is the change from 125 to 755
Calculation steps:
[( 755 - 125 ) ÷ 125] x 100 = 504%
Formula
Percentage change = [(755 - 125) / 125] x 100
Subtract the new number by the original number
755 - 125 = 630
630 ÷ 125 = 5.04
5.04 x 100 = 504%
Example