518.4% is the change from 125 to 773
Calculation steps:
[( 773 - 125 ) ÷ 125] x 100 = 518.4%
Formula
Percentage change = [(773 - 125) / 125] x 100
Subtract the new number by the original number
773 - 125 = 648
648 ÷ 125 = 5.184
5.184 x 100 = 518.4%
Example