164.1% is the change from 273 to 721
Calculation steps:
[( 721 - 273 ) ÷ 273] x 100 = 164.1%
Formula
Percentage change = [(721 - 273) / 273] x 100
Subtract the new number by the original number
721 - 273 = 448
448 ÷ 273 = 1.641025641025641
1.641025641025641 x 100 = 164.1%