181.64% is the change from 256 to 721
Calculation steps:
[( 721 - 256 ) ÷ 256] x 100 = 181.64%
Formula
Percentage change = [(721 - 256) / 256] x 100
Subtract the new number by the original number
721 - 256 = 465
465 ÷ 256 = 1.81640625
1.81640625 x 100 = 181.64%