621% is the change from 100 to 721
Calculation steps:
[( 721 - 100 ) ÷ 100] x 100 = 621%
Formula
Percentage change = [(721 - 100) / 100] x 100
Subtract the new number by the original number
721 - 100 = 621
621 ÷ 100 = 6.21
6.21 x 100 = 621%
Example