391.06% is the change from 123 to 604
Calculation steps:
[( 604 - 123 ) ÷ 123] x 100 = 391.06%
Formula
Percentage change = [(604 - 123) / 123] x 100
Subtract the new number by the original number
604 - 123 = 481
481 ÷ 123 = 3.910569105691057
3.910569105691057 x 100 = 391.06%