413.22% is the change from 121 to 621
Calculation steps:
[( 621 - 121 ) ÷ 121] x 100 = 413.22%
Formula
Percentage change = [(621 - 121) / 121] x 100
Subtract the new number by the original number
621 - 121 = 500
500 ÷ 121 = 4.132231404958677
4.132231404958677 x 100 = 413.22%