495.87% is the change from 121 to 721
Calculation steps:
[( 721 - 121 ) ÷ 121] x 100 = 495.87%
Formula
Percentage change = [(721 - 121) / 121] x 100
Subtract the new number by the original number
721 - 121 = 600
600 ÷ 121 = 4.958677685950414
4.958677685950414 x 100 = 495.87%