309.66% is the change from 176 to 721
Calculation steps:
[( 721 - 176 ) ÷ 176] x 100 = 309.66%
Formula
Percentage change = [(721 - 176) / 176] x 100
Subtract the new number by the original number
721 - 176 = 545
545 ÷ 176 = 3.096590909090909
3.096590909090909 x 100 = 309.66%