136.39% is the change from 305 to 721
Calculation steps:
[( 721 - 305 ) ÷ 305] x 100 = 136.39%
Formula
Percentage change = [(721 - 305) / 305] x 100
Subtract the new number by the original number
721 - 305 = 416
416 ÷ 305 = 1.3639344262295081
1.3639344262295081 x 100 = 136.39%